Beyond the Wall: The wight bear is inspired by the bear that joined the attack at the Fist of the First Men.
Possible Developments in Future Books
Beyond the Wall: It’s possible that Jon Snow and Jorah Mormont could eventually meet and discuss their relationships to Jeor Mormont. There’s no evidence for or against the notion that the death of an Other might lead to wights disintegrating, although given the way that it works—that it is a pervasive, general magic that does not require the immediate action or presence of an Other—we suspect this is not an aspect Martin intends for the books, especially as he has indicated that the level of personification of the Others on the show—in the form of the Night King and his entourage—is not in line with his own plans. Finally, as discussed in the analysis video, it seems possible that Daenerys will lose a dragon to the Others—or an agent of the Others, given speculation regarding Euron Greyjoy—and this event in the series may be inspired by that part of GRRM’s sketch of his end game to the showrunners.
On the Ship: Many fans assume that Jon and Daenerys will form a relationship of some sort, which could begin with his accepting her as his queen.
Entirely Different
Beyond the Wall: As previously noted, this mission to capture a wight simply will not happen in the books, as Jon already prepared the way to getting a hold of wights by storing corpses in the Wall. Gendry is a member of the brotherhood without banners in the novels, and was never sold. The Hound is unlikely to become a R’hllorian or even simply look into flames and see visions.
Winterfell: The conflicts seen her are simply very unlikely to happen in the novels, given the vastly different situation Sansa is in compared to what has happened in the show.