Visions and prophecies in Game of Thrones so far have a tendency of playing out, and there is some crossover in Bran's visions to those that Daenerys has in the house of the undying.
Bran saw the past, the present and the future in all of his vision sequences:
And Dany had, what seemed at the time, more of a metaphorical vision but the evidence from Bran's more recent visions imply that, at least the snow/ash covered throne room, Dany's may also be more literal. In fact, the only thing we don't already know is now in the past, from all of Bran's visions, are the ash/snow throne room
and the shadow of a dragon over King's Landing
Alt Shift X has also put out a video on Dany's visions, but it shows how important visions are in the world of ASoIaF.