Like I mention before, it'd be way better if Bran/Three Eye Raven was just playing everyone all along, and this was some sinister plan of his.
Telling Sam to tell Jon who he really is. Knowing he'd tell Dany, Sansa, and Arya. Creating this big rift, and knowing Dany would go mad. Burn King's Landing, forcing Jon to act.
He kills Dany. He can't be King, because he's a kingslayer, and Sansa, Arya keep his secret to everyone else.
Then Three Eye Raven rules.
I like
@Cavatt idea, but again, there's no indication any of that actually happen. They started going places with Bran's character, then just stopped and went no where.
This is the final, you got to reveal something. They didn't. Nothing.
Just complete bullshit by lazy writers that duped us all with this complete half ass, make no fucking sense, of a conclusion.