"In the third episode of the last season, there is a battle that the creators intended to be a historic moment in television," he said a fan convention in Hungary, as translated by Mashable. "Almost the full episode will be about the battle; it will take about one hour."
If that's happening in episode three, what in the world can we expect from the final three feature-length episodes?
We can only assume that means the fallout of the battle will be so dramatic that it will take the rest of the season to clean up the mess. It's quite possible that temporary alliances forged with the specific purpose of defeating the Undead army will be broken when/if the Night King is finally vanquished, and Jon Snow, Daenerys, Jaime Lannister and Queen Cersei (if they're still alive) will be back at each other's throats in their fight for the throne.
Whatever it means, Thrones' return next April certainly can't come fast enough.