https://www.cnet.com/news/new-game-of-thrones-tv-spots-is-jon-snow-riding-a-dragon/

Personally, I think he does ride one of the dragons, but to be fair, in this clip, the characters might just be looking shocked because a damn dragon is flying over their heads, regardless of who's on it.

The second clip, titled "Survival," begins on a more somber note, with Jon Snow perhaps praying or reflecting at a weirwood tree, and Arya Stark (Maisie Williams) standing behind him. "Think back to where we started, now it's just us," the narration muses, and if you're not remembering poor Ned, Catelyn, Robb, Rickon and all the other sad souls of the dead, your heart is probably as cold as the Night King.