A Song of Ice and Fire author George R.R. Martin has said he's written 1,100 pages of next book The Winds of Winter, the same amount he'd written as of December 2022, while also revealing there are eight Game of Thrones spin-off shows being worked on.
The more I thought about that, however, the more I felt that the readers would be better served by a book that told all the story for half the characters, rather than half the story for all the characters. So that’s the route I chose to take.
Tyrion, Jon, Dany, Stannis and Melisandre, Davos Seaworth, and all the rest of the characters you love or love to hate will be along next year (I devoutly hope) in A Dance with Dragons, which will focus on events along the Wall and across the sea, just as the present book focused on King’s Landing.
George R. R. Martin June 2005