RandomPrincess
Keep Moving Forward
Right! Remember, red priest/priestess of R'hllor can bring people back from the dead (kind of). Back in Season 3, they really hung a lantern on the fact that Thanos of Myr had brought back Lord Dondarrion several times. Since the *other* character that is brought back (kind of) in the books has been removed from the show, there seems to be no other reason to have all that exposition unless it'll be used later...
The person that is brought back in the books was dead a while before they were brought back plus they way they died causes problems. There was the other guy who had been brought back a bunch of times who seemed mostly normal. If she gets to John right away, he should be mostly okay. I'm keeping my fingers crossed as I have been since I read this in the book.