House of the Dragon teaser trailer (GoT prequel)

Scorpius the Allfather said
George has said that Winds of Winter is now 75 percent complete. So I guess that's still a couple of years away.

"Martin says he wanted to say he’s delivered “The Winds of Winter” for publication, but estimates it’ll take months more if all goes well." https://wgntv.com/news/game-of-thrones-author-blogs-that-he-missed-book-deadline/

That was January 2016. Don't fall for it. He went from thinking in August of 2015 that he could wrap up and finish the book by December 31, 2015 to...now he's "75% complete" 6 years later. He has no plans to finish this book.