Board Thread:TV Show Discussion/@comment-1031724-20170821054946/@comment-34660304-20170822154831

Here's what I believe will happen:

The White Walkers, after passing through the Wall, attack King's Landing. Daenerys now longer has her dragons (killed by Cersei or the Night King, who knows). The living gather in King's Landing, waiting for the Night King to arrive. Thanks to Jaime, Jon and Daenerys know of the caches of wildfire below King's Landing. Bran put them there, after going back in time and attempting to inform the Mad King about the Walkers and to "burn them all", giving him his madness. Jon and Daenerys go below King's Landing and light up the caches, destroying King's Landing, killing themselves, and destroying the White Walkers. In the end, Jon and Dany died together, killing the icy demons with fire.

A Song of Ice and Fire