Back in 2012 George R.R. Martin mentioned that The Winds of Winter will introduce new locations in Westeros, specifically Casterly Rock and Highgarden.
Are George R.R. Martin and Ryan Condal still at odds about House of the Dragon?
House of the Dragon Season 3 will be a bloody gorefest with new players
The Winds of Winter seems to be George R.R. Martin's priority even now
Turns out; it isn't that tough to convince George R.R. Martin to let you adapt his material.
House of the Dragon impressed fans and Matt Smith with its grand budget
In a 2014 interview, George R.R. Martin clarifies misunderstandings surrounding his work’s social and political implications.