Black Adam
Badass from Kahndaq
I'm assuming your talking about whatever happened in FN spidey since I haven't read the new issue.
I'll let Someone else describe whats happeneing
"The upcoming storyarc deals with a future Hobgoblin who alters history by attempting to wipe Spidey from existance...by removing his main motivation for existing. He's causing anamolies in the timestream, one of which, as Peter David puts it, ends up in 'what if Uncle Ben had lived'.
I doubt he stays. And it's not like he' hasn't been brought back for a few moments before. didn't Strange bring him back for a few moments to talk with Peter in a issue of AMZ?