[Spoilers EXTENDED] GRRM In a new interview: "[Winds] is coming pretty well, but I wish it would come faster"

During an interview with Collider for the press tour for 'In the Lost Lands' movie, GRRM talked about adaptations of his works and gave a small update on Winds:

During the conversation, Martin also talked extensively about the adaptations of his books and difficulties, such as budget restraints, and how to properly succeed with an adaptation. "You try to make the story as good as it can be, and some fans will like it, some fans will not like it," Martin said. "You're always going to get criticism, but you've got to keep trying. You've got to try to do every one the best it can possibly be."

Admitting that while the projects and the process could be fun and exciting, "some of them are frustrating, and they become less fun." However, he emphasized that when a project does come together, and it's good, then it can be wonderful. And for the fans who are still unimpressed by an adaptation, he noted that the books would always be there. He said:

"There's always the books, and I'm aware of that people think that— But no, I have to get back. I have to finish the books. That's the one thing I'm completely in control of. There's no budget limitations. There's no other executives on the studio side that I have to please, or other writers with different views. The books are what I'm going to make them. And, I think the one I'm writing is coming pretty well, but I wish it would come faster."

It looks like he is not very close to finishing Winds, but at least he seems pretty positive about what he's written so far. It seems the issues he had with HOTD season 2 really made him realise that what mattered most were the books.