Unlikely. Jon will warg into Ghost. Then his body will likely be placed into an ice cell, or burned by Melisandre (King's Blood and all). Remember, Melisandre's prophecy - man, wolf, man. Seems like that's warning and returning to his body. Also, when she asked to see Azor Ahai, she only saw Snow. Oh, and if R+L=J he's got King's Blood and she can raise a dragon (Targaryen) from stone (frozen solid).