I will be surprised if anyone can honestly and sincerely predict everything about this, as opposed to just a vague general idea, especially since we don't have Powers of X yet and that's literally half the story.
I am also keeping in mind that Hickman has said the whole point is to deliver something new that feels like something familiar, so it's not like even he is pretending that nobody will notice anything similar. They're going for that feeling, at least to a degree.