6) Gendry Rejoins The Brotherhood Without Banners
Gendry: former blacksmith, bastard son of Robert Baratheon, and undoubtedly an Olympic-level rower at this stage.
After Ser Davos rescued the unfortunate lad from Melisandre’s pyre, he stuck him in a boat and instructed him to make his way back to King’s Landing. That was back in season 3, and that’s the last we heard of him.
It’s hard to know what’s in store for Gendry because none of this ever actually happens in the books at all. When Arya is taken by the Hound, Gendry stays with the Brotherhood Without Banners and presumably remains in their company. Rumor has it that Thoros, Beric and the rest of the Brotherhood will be re-introduced next year, so if that happens, there’s a good chance Gendry will be among them.
Unless of course they decide not to revisit the character at all, but that seems unlikely.