Denials Across The Board
Following the seventh season of the series, Isaac Hempstead Wright, who plays Bran on the show, said in an interview that Bran wasn't going to become the Night King. Comparing Bran and the Night King, Wright said, "Perhaps we can think of it as these are two characters with a huge amount of power, but one is a Frankenstein’s monster who is driven by nothing but hatred and violence. Then there’s Bran, who uses his powers for good. I want to find out why the Night King is so obsessed with destroying mankind. We’ll see whether they have any kind of explanations in the next season."
Things may have changed following that interview, of course. The actors from Game of Thrones hadn't gotten the chance to see scripts for the new season by that point, and the writers may have revealed new things about the connections between Bran and the Night King. But it's not just Wright who has come out to seemingly deny the theory.
Taking part in a Reddit AMA late last year, television director David Nutter answered a number of questions about his time as a director on Game of Thrones. He's directed nine episodes across the course of the series, including three in Season 8. The AMA revealed a whole host of tidbits and details about the series. One fan specifically asked if time travel would be an element in his episodes.
Nutter responded that, "Well, I’ll be the first to tell you that I have no time travel in my episodes. That’s the only clue I’m going to give you." While some of the members of the board suggest that he could easily be lying or using specific language to hide a major twist in the narrative, it does come with a certain straightforwardness that suggests he's telling the truth. If so, then it appears that Bran won't be moving throughout time in a full half of the season, leaving a pretty big hole in the theory that Bran becomes the Night King.
Game of Thrones will return for its eighth and final season on April 14. The HBO drama stars Peter Dinklage as Tyrion Lannister, Nikolaj Coster-Waldau as Jaime Lannister, Lena Headey as Cersei Lannister, Emilia Clarke as Daenerys Targaryen, Sophie Turner as Sansa Stark, Maisie Williams as Arya Stark and Kit Harington as Jon Snow.