It seems likely, given how the series continued, Jon Snow will be resurrected, however the book A Dance with Dragons hinted he may not even be quite as dead as we think.
As he was stabbed, his final word was “Ghost,” which fans will know is the name of his direwolf.
Direwolves were not well discussed in the TV series, and the Stark’s relationships with their direwolves were largely missed out.
However, the final breaths of Jon Snow as written in the book certainly suggest rather than his death being quite as final as the TV series, he may warge into his direwolf, Ghost, meaning his consciousness remains alive.
source: express.co.uk