The more episodes are aired, the more fans come to believe that Bran Stark is the Night King on Game of Thrones. The new Three-Eyed Raven's penchant for warging (and especially greenseeing) has long had fans convinced that perhaps he lost himself inside the mind of the man who eventually became the Night King, despite the fact that you would assume that seeing Bran and the Night King in different places at the same time would have put a pin in that fan theory. But whether Bran became the Night King, will become the Night King, or already is the Night King (they do dress alike sometimes) might be given more weight by this Bran-Night King clue from the Game of Thrones Season 7 finale.
The moment may have been easy to miss, since it came after Jon Snow and Daenerys were finally consummating their season-long sexual tension and while Bran and Sam Tarly were discussing the fact that Jon is her nephew. Yes, at the same time. You were understandably distracted for two different reasons. Then, you may have been caught up in Arya and Sansa discussing Littlefinger's death and reaffirming their relationship.
However, after all of that, we saw Bran staring out into the distance with his warg eyes on — and then the scene immediately cut to the Wall and, more importantly, the Night King riding a dragon to take that damn Wall down once and for all so his armies of the dead can march on the rest of Westeros.
Sure, we've seen Bran try to spy on the Night King before — and sure, we've seen him fail miserably at warging into the mind of a human before. (Poor, poor Hodor.) But if he wasn't warging into the mind of the Night King, or trying to, then why the sudden cut scene from his eyes glazed over the way they do when he's warging to the Night King marching on the Wall? Why show us Bran warging without letting us know what or who he was trying to warg into or greensee? The scene cut seems a little too on the nose to be anything but deliberate on the part of the showrunners.
This becomes even more true when you consider the fact that the showrunners are aware of many Game of Thrones fan theories, so there's no way that they're not aware of the theory that Bran is the Night King. Any nod that they leave — especially one that blatant — can only add fuel to the fire, and the Season 7 finale already gave fans so much to think about until Season 8 that this just seems unnecessary. Unless, of course, a key part of Season 8 has to do with the mystery of the connection between Bran and the Night King.
Of course, the whole Bran is the Night King theory is not without its complications. But we'll get our answer soon enough.