I think they should just retcon/Timewarp/whatever the hell out of Slands, personally. It would be a very cheap, but effective, way of untangling some of the mess they caused.
That would open up the possibilities for a whole slew of lore characters who were killed off in an untimely way. It would give the opportunity for Arthas to be brought back, and (I would personally say) to work underneath his sisters gaze at restoring Lordaeron/righting wrongs/etc. Escort quests with him along, a la Kael’Thas, could be fascinating as well, just seeing the character progression, ya know? There’s SO much that could be done with all of that.
Same with Tirion, Varian … Hell, any of ‘em that got rekt just for the sake of Sylvanas’ plotline alone. It would be easy enough to keep a push forward on new lore characters they want to build up more (cough Turalyon cough), but also have the old guard in the background in some fashion.
idk, this is all right off the top of my head in ways they could go about this. I do know that right now, it still just doesn’t feel like the real WoW to me.
I hope to christ that Metzen can make it all right again.