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.
Not all page counts are created equally.
Might be he made no progress. Might be he rewrote a ton and fixed the issues that held him up.
Might be that he rewrote a ton of stuff and now has to rewrite even more.
Might be that this is all a prank show.