Correct me if I'm wrong...
But I read that the whole mutant potential thing was a Celestial invention, making Mutants one of their experiments. Don't you think they'd have something to say about their whole little science project just going poof.
That may be why Apacolypse involved with them now. Maybe his next job is to bring back mutantkind. You think though that if he said that at the beginning, he'd have a lot more people on his side. I could see a whole bunch of ex-mutants standing with him, helping him find a way to bring back the powers. It'd be a cool storyline, seeing good guys who lost their powers giving in to their greif by going bad, the problems it would cause, the rifts that would form, and in the end, they win. Then what. Everything goes back to normal. No sir. You have an infinite amount of possibility afterwards. THe muties that were opressed after they lost their powers go sh!tballs crazy and f#ck their opressors up, and then when the dust settles. Then what? Ahhh the posibilities...
But most importantly, the mutants would be back.
Peace.