According to a whole slew of theories gathered by Paste Magazine, Bran Stark could actually be the lynchpin to the past, present, and future of Game of Thrones.
Young Brandon Stark was a major character in the early seasons of Game of Thrones, but he was cut out of Season 5 entirely.
Its still far too early for us to start betting on whether or not Bran is the puppetmaster of the past, present, and future of Game of Thrones.
Hopefully, Game of Thrones will show more about what Bran can do as a warg and greenseer before Season 6 comes to a close.