They'll bring him back eventually, but I don't know if it'll be as early as next year's Wrestemania. Wouldn't surprise me if it was, though. Triple H said in a recent interview that he wants to bring back Hogan, and it's just a matter of time before they do.
There's no way he ever wrestles again when he does return, though. Dude is just too old. He couldn't pass medical tests in 2014 when they wanted him to team with Cena at Wrestlemania XXX, I don't see him passing them when he's a couple years more ancient either.