Alrighty, the time has come, I’m going to write out two scenarios novel-style of which could be the depiction of a new Blood Queen/King. Might have a short bonus story as well, showing what I would think is most likely of course. These two scenarios are also possible. Who knows!
Ressurecting Lana'thel
The rumble of thunder was deafening, but it had little effect on the ears of the damned with such an important purpose. Two pairs of deep red eyes gleamed the night, exchanging a glance before happening upon a seemingly unimportant corpse on the shore. Leaning down, one of the Blood Princes, Theraldis, flared his nostrils and took in the corpses scent a moment before nodding. “Good. He did as he was told. Hopefully he gained favor of the Horde. We shall see,” he growled. The other Blood Prince, known as Atherann, provided a slight smile, reaching down to his robes and feeling around. From out of them he pulled a well-secured soulstone, one that glowed with a bit of blood magic for a rather potent mix… He handed it to his comrade and stepped back to observe.
The body was at sea for a bit too long for the soulstone to work as intended. The blood orb could not work well in this scenario–they needed it for a very special plan once this one could go through. But Theraldis knew that Dreven was going to be sacrificing himself to gain favor of the Horde. It was the only way to ensure their people had a remote chance of survival now. Otherwise, they might be all hunted down and destroyed. But they were no longer the Lich King’s puppets and did not fear repercussions of going against him. Anyway, the ritual needed much more put into it, therefore, and the two blood princes had planned this ahead of time.
Taking the stone gingerly in his claws, Theraldis took a step back and spread his hand. “This ritual will take much from us. But without the power of a third, we cannot bring our Queen back. Sacrifices must be made to ensure our people have our queen.” With that, he extended an index finger from his right hand while still holding onto the stone and sliced into his other palm. Then, he raised the stone over his head as the blood from his left hand welled up and began to form spindles before connecting to the stone and flowing about it like blood through the veins of a living creature.
Blood Prince Atherann did the same, soon enough contributing his power to the ritual as well. Wires of blood began to whip around and latch onto the body of Blood Prince Dreven, pulsating like leeches sucking away his life. However, this process was doing the opposite. The glazed-over look in his eyes slowly began to fade as a dark red hue fell over them. Finally, they reached the point in which they were as lively as the other princes, and slowly Dreven lifted a hand, placing it onto his forehead and letting out a soft groan.
The blood spindles dissipated, and the soulstone lost both its glow and hue. The ritual was complete, just in time for the pouring rain to increase in intensity. For the moment, none of the princes paid that any mind. A pause in time occurred right then. Dreven took his time to awaken, flexing his fingers, sitting up and rubbing at his face, his neck, his arms, just to ensure he could feel again. In dead silence did Theraldis and Atherann watch, until finally one of them broke it.
Softly, Theraldis purred, “Welcome back to reality, apprentice. Tell me. Did you do as the Horde asked you?”
Dreven’s eyes glimmered a moment in thought. He was hesitant, but slowly he nodded, getting to his feet, the entirety of his robes drenched. He looked quite like a drowned bat, to be honest. “…Yes. The warchief commanded me to, at all costs, keep the Alliance distracted. She did not inform me of her objective. A fragment of our forces were sent out on a boat. We were ambushed by the Alliance during this process, but her words, they echoed in my mind. At all costs. At all costs. I do believe I have made a mistake, my lord.”
Atherann spoke up now, stepping forward. There was a hint of concern in his voice. “Apprentice,” he hissed, his ears flattening. “Our people have no home. We are seen as wretched, disgusting creatures not meant to survive. We are shunned by our own people. This was a chance to finally have a place to go. The Forsaken were granted that. As I heard, so were some of the Death Knights. We need allies, we need to integrate, otherwise we will be wiped out. How I long to aid my people after the atrocities I committed. My intent following that Demon Hunter to Northrend had not been to become this monster. Therefore, please. Tell me you did not ruin this for us. Tell me we still have a chance. We can use our brutality, we can use our fangs to aid the Horde and most importantly, our city. No doubt the Alliance has their eyes on the Sunwell, that much is obvious. I hear the whispers, I know of those disgusting traitors, the Ren’dorei, and their objectives. All that we love or used to love will be eradicated if not given enough help. We must be there to rip those Alliance dogs to shreds and gorge upon their blood. Otherwise…” The Blood Princed paused, a scowl on his face.
Dreven sighed, avoiding either of their gazes for the moment. “I gorged upon some forsaken. They had not nearly as much power as a Kael’dorei held in their beating hearts. The taste was not palatable. The warchief ordered me to do it at all costs. I was going to be slain! They would have not been given enough time! I powered my shield with the blood, managed to hold on for a few minutes longer, but that wretched Kael’dorei, Shandris invoked some power and disposed of me. I tried to survive. I tried all that I could, and I still failed, my lords.”
Blood Prince Theraldis and Atherann exchanged glances. Their wore hardened expressions, and both looked a mixture of wary and hopeless. Finally, Theraldis spoke up. “And does the warchief know what you did?” he asked in a whisper. Dreven slowly shook his head, his hair clinging to his skull, neck, and chest due to the constant soaking from the rain.
“They do not. Only Shandris and the Alliance Hero bore witness to my betrayal,” he replied with a sigh. Somewhat relieved, Theraldis gave a nod, turning away from him and motioning for the other two to follow.
“Well. We will have to hope that the secret remains just that, then, Dreven. Otherwise, you have doomed our people. Both the living and the dead,” Atherann replied. Together, the princes dissolved into bats and flew off in a flurry, taking to the night and vanishing into the dark clouds.
Intel from within the Citadel rendered this the one and only opportunity. There was no window for failure. The San’layn had eyes everywhere, and when they heard Bolvar was to be distracted a few months later, they had to make their move. During the time in which he was being questioned by the champion as to the warchief’s purpose and who granted her the mantle, the three blood princes breached the citadel and quickly extracted her body.
All went well until the very end. A booming voice of anger rang out right as the princes were halfway through rushing out of the building. It was Bolvar’s. “HOW DARE YOU DEFY ME! I AM THE JAILER OF THE DAMNED! YOU ARE MINE! THE SAN’LAYN WILL NEVER ESCAPE THEIR BOUNDS!” A rumbling occurred over the three princes, causing Theraldis to gasp.
“Run. RUN!” he shouted as pouring out from every corridor was an army of ghouls. “We must get out of here before the abominations emerge, for we are trapped forever if we do not.” A mad cackling occurred from Bolvar, not exactly all that reassuring.
“You escaped me once. You will not again,” the Lich King’s voice snarled into their ears. Atherann hissed in worry, flattening his ears and bowing his head. He looked behind him, muttering a spell and sticking out his hand. Spears of blood flew out and impaled several ghouls, melting them and creating a sickly substance. The blood and other goo coagulated into more spines, piercing more and dissolving them rapidly. This action, however, was not to be enough. Groaning, Atherann glanced to the other two princes. Theraldis was carrying Lana’thel, so effectively couldn’t do much here.
“We are running out of time. Soon, they will be upon us, and we will be in chains once more. There must be something we can do. Hurry,” Atherann gasped. Dreven paused for a moment and nodded. He took a deep breath and closed his eyes, now using his nose to guide him where to go via the scent of the other princes’ blood. Now, he focused, and a shield of blood formed around them. This was at a great cost, however. Blood poured from his veins to allow this to occur, and he was losing power rapidly. But perhaps it would work this time.
The ghouls bounced off of the shield, mercilessly trying to claw their way inside but failing to get to their prize. Soon enough the way was in sight, but an abomination moved to block their way. Spilling out of his hollow belly were bloody guts, and he reared his ugly head to let out a deranged bellow. There wasn’t enough time to fight him, either, but Dreven had an idea. He snarled and slammed his foot upon the ground. The shield exploded outward, shattering anyone outside the shield in a ten meter radius, including the abomination. Unfortunately, Dreven fell to the ground after this, passed out by such a short burst of power and not enough recovery or build up time.
Quickly did Atherann dart to him, throwing his arm around his shoulders and dragging him along. Luckily the San’alyn had unholy strength, so this was no problem. The moment of pause to do so however used up time, and once again were the ghouls closing in. The explosion however had cleared the way, and soon enough the Blood Princes emerged from the citadel. Gargoyles landed before them, trained by the Princes themselves.
With a great leap, Theraldis and Atherann latched onto the gargoyles, holding the either dead or passed out body of the San’layn they carried in front of them. Bolvar didn’t bother to pursue them, not now. By the time he gathered the proper forces, they’d be long gone. Well well. They would no doubt he a target of his regardless, for the San’layn, in his eyes, were meant to be locked away. He would see to it that this would occur eventually.
Finally the three Blood Princes gathered around the body of their queen. Blood Prince Dreven had never actually seen her in the flesh, for he was a new Prince courtesy of Theralis and Atherann. He didn’t really remember his origin, other than he’d been on the brink of death when happened upon by the two. But that was a story for another time.
They were in the underbelly of Dragonblight, Ahn’kahet the Old Kingdom to be precise. The bugs had been cleaned out, replaced by regal banners of the San’layn, where they’d hidden out for a decade. They had a very long time to build up this Kingdom and create more San’layn in secret. Bloody spires and buildings with gothic architecture mixed with that of their origin, the Sin’dorei, could be seen. Rather than crystals of green, however, the area was decorated with crystals of red. Dark red fire lit the way, setting a more gloomy and dark scene, much different from the bright of Silvermoon City. Royal red carpets were draped along the ground as they walked to the top of a temple-like building, where what looked to be a sacrificial table was set up.
The first thing to notice about this temple was the amount of blood spilled upon its floors. So much so that it was stained red. But why? Well… glass orb upon glass orb was filled with many different types of blood. Unwary travelers to Northrend, though only the Alliance races, as naturally the San’layn made a decision for an attempt at peace with the Horde, many Vry’kul, and the occasional dragon’s blood too. In fact, there was a struggling human in the corner right there, prepped to be an addition to this ritual rather than just food.
Atherann walked over to the human, catching him under the jaw and smirking. He snarled and spit into the San’layn’s face, but the Blood Prince paid no mind. Rather, he squeezed his hand, sinking his claws into his cheek and causing him to cry out in pain as it felt like tiny daggers were ripping through his flesh. Suddenly blood began to gush out of every pore on his body, and screams of agony filled the air. The blood pooled and coagulated, forming into an orb, of which Atherann grabbed, releasing the now drained human’s chin and delicately removing a bit of glass from his bag. He placed the substantial amount of blood into the orb, using his arcane magic to allow it to float, as the glass orb and the blood itself was far too much to just hold. Successful, Atherann turned to the others.
“We are ready.”
The body of Lana’thel was placed on the table, and the princes gathered around. Above them was the true blood orb, glowing a bright red, but currently a dud since it had not yet been restored. That was about to change. The shattering of glass was heard as the collected blood poured upwards in a very strange fashion to meet that of the orb, filling it and empowering it. The orb remained the same size, of course, converting the blood directly into the magical energy that it would need for this ritual.
Finally, spindles of blood shot out at Lana’thel, and Theraldis stepped forward, a soft smile on his face. “The San’layn are our own immortal soldiers. Now our enemies will face our Kingdom’s might. Rise up, sister… and lead us to our victory!” he snarled. The blood orb bled power into Lana’thel and suddenly went dark. Everything froze in time, and for just a moment, the three princes wondered if they had failed.
That was when slowly her pure-black eyes began to open and fix upon them. Her wings spread a bit, stretching like a bat waking up from a long, long rest. Sitting up carefully, she looked around, somewhat hazy. After a pause, an excited smile spread across her face as she flashed her fangs in delight. “Well well well,” she purred softly. “It looks as though the game has not quite ended for me. The Citadel was ‘only a set back’, as it were, hmm? You did well, my brothers. Very well. Now I am ready to play once more.”
The next one I’ll write is the concept of Kael’thas being brought back. That one will be a bit more complicated, and I might of course be getting the use of various magics wrong, or how they intend the vampyr ritual to work. But who knows!
As you all know, I’m a huge fan of story writing, so I voice my ideas in this fashion. If it can inspire some of the devs and how they could write lore for our vampyr here, I’d be thrilled. I might not be able to create art. But I have my writing to back me up. 
Edit: Ooo, I found another story I’d been looking for that I wrote a long time ago. Here it is, more fun concepts and personality ideas. San’layn/vampyr elf Customization (and Allied Race idea) Coagulated Megathread {Re-VAMPed} - #1868 by Fallynn-wyrmrest-accord