In the last trailer for Game of Thrones season six, Davos Seaworth (Liam Cunningham) issues a stern warning: "The real war is between the living and the dead, and the dead are coming."
But when will the dead arrive? Expect the White Walkers sooner than later, as showrunners David Benioff and D.B. Weiss confirm to The Hollywood Reporter that their adaptation of George R.R. Martin's A Song of Ice and Fire is indeed approaching the end of the line.