I really hope they use this new reality altering plot device to really shake things up going forward. Have it make some radical change that could take us to a WoW 2.0 of sorts, Azeroth revamp or something like it.
Because, even if I'm a huge fan of WoW and Warcraft in general, for years, it is feeling a little stagnant. With the slow content delivery this time around, only 2 major patches, being sued, all the controversies and scandals ... I'm not one for exaggeration, and often argue against the more dramatic side of the community, but it seems like it's one of the worse, if not the worst, moments in Blizzard history.
As someone who's never been a fan of LoL, having watched Arcane, their MMO is sounding more and more appealing. A new, modern game, built off of a great quality narrative that's had mainstream success ... At the same time, FF XIV has become very successful as well.
This is just my opinion, but even as someone who isn't usually negative about the game, it's feeling like it's falling behind. I think they need something shockingly impressive soon.
Edit: By a revamp I don't mean retreading old stories. No time travel, just a modern, beautiful world with great new stories to tell.