Maybe someday they'll explain how power can get boosted. How can you overcome your own biology and DNA so easily all of a sudden. Funny thing is, looks like Cable blew Northstar's brains out, but he certanly treats him as if he's still alive. Second Zombification? Aurora was knocked out by her own psyche falling apart so she won't be undead, too. In limbo? Of the 40+ Alpha Flight characters, most have been in limbo for over a decade.
Luckily, I'm more an AF fan than just one character (it helps that they made Box a wimp and ignored Witchfire/Feedback forever ), same as I am with most things, teams over the one. Not that I don't want Box in Omega Flight .
Will Northstar and Aurora be dealt with by Carey? In 191? I really doubt it. For some reason I think they'll be in limbo for at least a few months. Really hard to say for sure.