Board Thread:TV Show Discussion/@comment-1399600-20160629121258/@comment-5308269-20160801004435

I assume Bran would only reveal this information to his immediate family. Arya, if she returns, will probably be told eventually. As for what Jon does later, he can simply tell the Northern lords that Bran is their true king and he's willing to serve him. And Jon would be the North's main general.

The Wall is also a long way from the North, so they might just travel at the speed of plot for that one.

I think Daenerys will have made it back to Westeros by Episode 7x1 in any case. Bran (assuming he's in the first episode) may be spending some time at Castle Black. With the White Walker attack, either Bran, Meera, Edd Tollett and the rest of the Night's Watch abandon Castle Black due to being overwhelmed, or a raven will be sent warning Jon of the attack, who then leads a force there to help in their defence before they're forced to abandon the castle after it's overrun, and retreat back to Winterfell.

And speaking of the Wall (tangent alert!), unlike many people online, I doubt that the mark on Bran's arm is going to play a part in the White Walkers passing through it. In the First Season, Jon Snow had to burn a re-animated wight of the Night's Watch brother named Jafer Flowers mere hours after it had been dragged inside. Castle Black is on the south side of the Wall, behind where the magical barrier theoretically should be. So if there is magic built into the foundations, then it clearly hasn't worked in a long time. I don't even know if the White Walkers are going to use the Horn of Joramun either. I suspect that the White Walkers have made no effort to assault the Wall in six seasons because they've got all the time they need. They must be aware that most of the Wall is unmanned anyway, so they're most likely going to climb over it, much as the Free Folk have done, and spill down into Castle Black (Samwell Tarly mentioned steps built into the Wall in Season 3). Other than that, if magic was the only thing keeping them out, then why go through the monstrous expense of a 300 mile, 700 foot high wall, which was originally manned by an army of thousands?