Jon Snow who has been betrayed by his own people from the Night’s watch and left to die might not be dead as of yet. However, the season 6 trailer starts by showing Jon Snow lying unmoved on the ground presumably dead. He got no help from anyone to retrieve him or to save him.
Download Game Of Thrones Season 6 Episode 1
He got punished by his own group for his kindness towards the Wildlings as he helped them cross the wall to search for save heavens but things turn out to be ugly due to misunderstanding and hatred and eventually both the wildlings and the Night’s watch were against Jon Snow, who got little support from his own group. However, it is believed that he might still be alive as some of his photos were revealed in July 2015 that he arrived in Belfast. It speculated that he still be alive.