I've honestly been considering EPCOT a lost cause for the last few weeks, when it used to be my favourite place in the world. There's still a tiny part of me hoping that, maybe, this'll be the kick that Disney needs to stop treating the park as "eh, just shove whatever doesn't fit anywhere else in here and call it updated" and actually do something that honours what it was built to be instead of a vaguely space-themed parade of Disney stuff, but... it's been long enough that I feel like it's better for my mental health if I try not to get my hopes up about it.
Either way, I'd assume that it'll be a long time before we actually find out, so all that we can do is speculate.