I feel like it could still go either way ie the X-Men coming via multiversal means, or being revealed to have been there all along, with a backstory...
Absolutely. And given it's Disney, I reckon a mix of videogames, animation, live action shows and movies, merchandise and comics will be used to win...
I think it will be a missed opportunity if we don't get a villains book during From the Ashes. Just like the X-Men splinter and struggle as they get...