So, are this new non Evoker Dracthyr, like lower rank within the Evokers ?
Or basically NOT “Aspect Gifted ?”
Dont get me wrong, my Warlock Evoker seems way stronger than his Evoker counterpart, but strictly speaking as a Dracthyr, he seems to be a way “lesser dragon”
If you get what i mean
I am shocked that you have a Warlock Evoker considering both are classes.
Synthesizing the strengths of the Dragonflights into a single being was Neltharion’s primary goal, so I certainly think that he would have considered the Evokers to be the most important and successful outcome of the whole Dracthyr experiment. The rest he would regard as useful, but not necessarily important.
All of that is Neltharion’s evaluation, though. Why should the Dracthyr care? He’s dead, and his legacy is one of cruelty and corruption. There’s no reason that his preferences should be reflected among the modern Weyrns.
All evokers are dracthyr but not all dracthyr are evokers. You’re not an evoker warlock, you’re just a dracthyr warlock that couldn’t use all 5 dragon flight powers. So dracthyr other classes are just soldiers that didn’t join the top elites of the evokers.
I see here there is a dissonance.
Neltharion made the Dracthyr Evokers as the pinnacle of Draconic magical powers, synthesized and weaponized.
Dracthyr of other classes were not the best for the purposes of their maker, according to the design of their maker.
Does that preclude them from being greater than their design? For example, if Neltharion was trying to make a good screw driver, but out of his rejects, we found a good hammer.
As it stand right now like other have said… Evokers are strictly a racial exclusive Hero class in WoW much like DH are tie in to the elves only, the difference however is that they draw power from all the Aspects…
IMO I’m not surprise there since elves and dragons seem to be have the similar trait to be able to adapt and use different sources or energy of powers at almost a racial level. makes me wonder if it has something to do that elves comes from Trolls and Zandalari trolls show to have scales in their bodies much like Dragons or Dinosaurs (Zandalari Trolls Druids turn to dinosaurs), but that just speculation I once read from a fan theory written here that was a very interesting read basically saying that Trolls and obviously elves may have some connection to the Primal/Proto Dragons.
Since the Aspect and their source of power have yet to be explained we have no idea if other races can wield it, we do know that Aspectral Powers can be:
Transferred, Given, Taken or Lost: "As seen with the Demon/Dragon Soul, the super Weapon create by the Burning Legion to counter the Demon Soul called Glaive of the Aspects and with Thrall becoming temporarily the Aspect of Earth. When Dragon Aspect lost their Powers and gain them back by Azeroth through the new World Tree.
It can also be presumed that they can be taken or stolen, although we only saw this with the Dark Heart when it was use on Galakrond in that DF dungeon.
Manipulated and Corrupted: As seen with Titans giving “Their” version of “Ordered Aspectral Powers”. “Undeath” who source have come from different sources, as well as their corrupted counter parts, with the Nightmare, Twilight, Infinity, Shadowflame, Void etc. (Ahhh my impossible dream is we get some Hero Spec that lets my Healer Spec be turn to DPS spec maybe I can finally use it as I’m a main DPS, but nvm lol.) Ascendants it’s also a Dark Magic ritual that also is capable of infusing an individual with Drakonid powers and strength.
Hereditary, Adaptable, Infuse or/and Cloned: As seen with the Netherwing, Chromatic Dragonflight, Storm Drakes, Primal Dragons and even some unique individuals like Wrathion who birth could have been a mix of these.
It also has Transformative or Evolutionary attributes: As seen with the Dragon Shrines how they affect the area were they rest/reside or die and most noticeably their followers the Dragonspawn, Draconids. There are other that would suggest more evolutionary origin like the Cloud Serpent or Fairy Dragon (Although I can’t remember I need to check the Dragon Codex Book)
TL:DR: We don’t know as the game and books have mention very little to nothing of this possibility. However I think it be neat to have others be Evokers or at the very least expand the CC option on both Visage and Dracthyr models to at least RP with them either as a Dracthry with another Race Visage or in a headcanon play it as how you play Sorcerers in D&D who have Draconic or Otherworldly linage!
My bias opinion is that it be cool if it was like the D&D sorcs if only to add Naga as a Playable race that could use Evoker… I seen players RP their own headcanon of Evokers, from accesing powers from other Dragonflights outside the main cast even the corrupted and undead… as well as creating their own Dragonflight called Leviathans that makes them look like Nagas in their Dracthyr form and their Visage is like that of an D&D Aquatic elf (Alu’Tel’Quessir). Evokers have a lot of potential and possibilities (IMO) in WoW especially with the adding of Hero Specs, however as always we are limited by gameplay, coding and depending on the temperature mood of the Story Lore Devs developing cycles. So I guess hopefully we will see what’s up with Evokers as they expand their story and lore in the WoW gameplay universe. 
It’s order magic given by the titans.
It can also be presumed that they can be taken or stolen, although we only saw this with the Dark Heart when it was use on Galakrond in that DF dungeon.
Not stolen or taken but it can be given up. But what the dark heart took from galakronds wasn’t aspect powers since he was never given aspect powers. He was a void infused proto dragon. He had no titan aspectal powers.
True but it was a miracle to make even one dragon clutch, one using all 5 aspects is a outlier. Even the chromatic. Dragons failed at that.
Storm drakes aren’t dragons given aspect powers but proto dragons that were subjected by odyn and infused with his powers instead of the titans in general.
All in all, it seems to use dragon aspect powers, you need to be part dragon. Something about the dragon physiology is needed.
Thanks I can always count on any here to correct me if I misinterpreted or got something wrong, since I tend to go mainly from what I experience ingame, wiki and specific literature (rarely I buy books specially on games, unless I really like the IP, like REALLY OBSESIVELY LOVE IT, like WoWs Dragon Codex only because it canonize the existence of Chromatus, a WoW universe lesser version of D&D Tiamat one of my favorite evil Draconic Deities lololol 
)… and since I have sometimes the memory of a goldfish, I can get my facts mix up… not to mention I play so many other game than WoW.
Most of my friends have move to other games and are pulling me everywhere to play with them from full homebrew RPGs or traditional known RPGs to completely different games from the MMO theme like Warframe and Monster Hunter Wilds! To many lore and stories to contain in a brain!!! lol 
my Dracthyr is a warrior. I am the blade that strikes down the enemies of dragonkind.
I would really like to revisit the site where we fight and killed Scalecommander Sarkareth, that room was so beautiful, eerie and mysterious at the same time… Maybe reveal new lore or story on the Dracthyr or who that Old god in the walls of that place was…
On a side note: God I do hope we get access at some point to Scalecommander Sarkareth Void Metamorph form in our CC I love to look that Draconic and Fierce (obviously with more normal color to choose than Cosmic Void Blue lol).
They are not evokers, they are Classed Dracthyr. Think of the Evokers as an optional Monster Class like the D&D 3.0 option where you took levels as a monster instead of a class and developed monster features as you advanced in levels.
Evokers are the elite of the Dracthyr who usually become the Scalecommanders over time. the initial NPCs in the capitals were all Evokers but now it is much more diverse.
Neltharion designed dracthyr all to be evokers but many just weren’t able to tap into the aspectral magic in their blood for whatever reasno so they became other things. And non-evoker dracthyr are outranked by evokers.
Hmm… I thought it was other way around. Evokers were less common but the best.
You are both saying the same thing, just in different ways.
I was confused.
You basically in your own post confuse Dracthyr and Evoker, and what are the Dracthyr themselves, Dracthyr are aspects infused, evoker or not.
And actually, when you make a non evoker dracthyr, you have a special starting experience different from evoker dracthyr, and they explain to you that they are just same as others dracthyr.
Do you have a source of that?
War of the Scaleborne. It’s a good read.
It’s part of the lore. Evokers were always the top elites of the dracthyr that can use all aspectal powers on the fly. It was said in the beginning that not all dracthyr could do this, hence why evokers are considered the hero class of the dracthyr.
Yep it’s why they are the scalecommanders. In war of the scaleborne, Emberthal kills twenty dragons by herself in minutes.