Bran may never walk again but he could fly, as the one-eyed crow's prophecy confirmed. The young Stark boy is a warg, meaning he has the power to control creatures and in Game Of Thrones, there are no greater creatures than Daenerys dragons. By the time Khaleesi and her raucous reptiles are a force fit enough to make the trek across the narrow sea, Bran would have mastered his powers and could definitely enter the minds of the fire-breathing beasts. Whether its to save someone he loves in the nick of time, to bury The Twins in ashes (should they still be standing) or just to soar high over Westeros as a refreshing change to being grounded, the son of Winterfell taking charge of a dragon would be something quite special and is just be what the series needs.