Originally Posted by
The Jabberwock
His number is up in the next episode. There's just no way it isn't.
First, Bran knows full well that he betrayed their father, and once that becomes know there's no way Sansa can let him live without losing her position at Winterfell amongst the other lords. And even if she did, Arya will have arrived at Winterfell and she sure as shit won't let him live. Considering that the previews have also shown him in possession of the dagger he gave the assassin he sent to murder Bran, that someone with Littlefinger's same fashion sense is wielding that dagger in the same preview, and that promotional shots have shown the same dagger tucked into Arya's belt, and the aforementioned preview of what looked to Brienne decapitating someone... yeah, his chances of survival are just about nil.
If anything, he'll only continue to be on the show as one of Arya's masks, which means they might not actually lose the Vale's support depending on how his death actually goes down.