There were scenes involving an assault filmed, with the Blackfish possibly defending the garrison and shooting flaming arrows. We'll be seeing Jaime and the Blackfish having an argument, as well. The scenes mentioned by Los Siete Reinos so far are in line with the siege and Jaime and Blackfish's disagreements from the novel. The new twist is Bronn's presence; the show is apparently continuing the partnership between Bronn and Jaime into season 6."
They speculated about the possible return of Catelyn's brother Edmure (Tobias Menzies) who at least survived his own ill-fated Red Wedding. It's not clear if we'll see Edmure, though, it's just a hope/guess.
But here's something else to think about, in case you were wondering about Rickon Stark (Art Parkinson). We haven't seen Bran's bro -- or Osha (Natalia Tena) -- since Season 3 either, but we are expecting to see them in Season 6.
