The theory that Bran is the Night King has gained a lot of traction in the recent weeks, and Season 7 finale had a little detail that seemed like a nod from the showrunners to this theory. Check out the picture below :
The Army of the Dead marching south after Viserion helped them blow a giant chunk of the Wall off, is seen marching in a formation that looks quite like the sigil of House Stark. Fans have taken this as the definitive sign that the Night King is actually Bran Stark, but there’s a chance that they’re showing the wolf to signal that they’re headed for the wolves next, matching past the Wall or it’s even possible that the above picture doesn’t mean anything special and it’s just a mere coincidence. What do you think?