I feel like the Shadowlands has some rather amazing potential, especially depending on what living characters are able to travel there, if it does become an expansion.
As an example, let’s look at Jaina. In the Shadowlands there are quite a few characters who’d have a strong connection to her. Her father, of course, would be someone to meet to resolve her guilt. But imagine if she met Antonidas there, her beloved mentor? I wonder what he would say to her? Arthas is quite obvious. I could see Jaina end up saving his soul somehow.
What about Lor’themar? The obvious thoughts here are Kael’thas and Anasterian. What would Rommath do if he met Belo’vir? Or Liadrin if she met Vandellor?
For Anduin, imagine meeting his mother, his father, his grandfather, etc… a whole ton of Wrynns. He might even meet his namesake.
Of course this ALSO opens up some interesting potential futures. Imagine, for example, that a character is NOT there. Let’s say, for example, Kael’thas’ soul is not in the Shadowlands. Well, where is it? Or let’s say Varian’s soul isn’t there because he got disenchanted. Is there a deeper layer of death than the Shadowlands his soul may have gone to?
The issue with a Shadowlands expansion is that there is going to be so many potential stories told, and only so much time to actually tell said stories. Not only that, but who knows if players will like the stories told? Imagine if Lor’themar, Rommath, and Liadrin go to the Shadowlands, meet Anasterian, Belo’vir, and Vandellor, and those three tell Lor’themar and company that they’ve utterly disgrace the legacy of Quel’Thalas by allying with monsters such as the Horde? I cannot imagine Blood Elf players would like that one bit, or Horde players in general after all the brow-beating this expansion has done. Yet, the characterization of those three characters strongly suggests that they would condemn the modern leaders of Quel’Thalas for their decisions.
So would Blizzard just skip them to spare the Horde players? I can only imagine endless cries of Alliance bias, that Horde content didn’t make it in, would fill the forums as they did in Legion.