These may not make sense to those who have only watched the show, book readers or fans who have read into the lore and history of Westeros may find interesting...
-Bran becomes Bran The Builder: (lived 8,000 years before the present moment, one of the invading First Men and the founder of House Stark. He built Winterfell, and the Wall and possibly Storm’s end.) The theory basically goes that Bran will somehow influence or warg into the legend that eventually builds the wall... thus becoming Bran the builder and founder of house Stark.
-Bran is the reason the Mad King went mad: "Burn them All"
-Bran becomes Bran The Builder: (lived 8,000 years before the present moment, one of the invading First Men and the founder of House Stark. He built Winterfell, and the Wall and possibly Storm’s end.) The theory basically goes that Bran will somehow influence or warg into the legend that eventually builds the wall... thus becoming Bran the builder and founder of house Stark.
-Bran is the reason the Mad King went mad: "Burn them All"