He's dead Sam, but maybe he can return as a white walker or something,lol. There have been quite a few unexpected twists and turns in this story, like who would have thought Sean Bean would exit the show so soon, and then John Snow's love interest 'that thing you do with your tongue' getting killed. In the book series John Snow wasn't killed so that maybe something to go on but what I do know for sure is that it is a great show and I have to be very quiet while it is on 'for the entirety of the show' or else I'm in the doghouse,lol