Bryan Cogman, who wrote this past weekend's season 8 episode 'A Knight of the Seven Kingdoms', has ruled out a spin-off from him after previously being attached.
"I'm definitely leaving," he told The Hollywood Reporter. "I was developing one of the successor shows with George [RR Martin]. George has worked with a bunch of the writers, including Jane [Goldman], whose show is being done [as a pilot].
"My prequel show is not happening and will not happen. HBO decided to go a different way. I'm working with Amazon now and helping them out with their shows. So, it is a goodbye. I am done with Westeros. It's wonderfully bittersweet.
"I'll certainly miss it, but I'm excited to go out on my own and try to be in the captain's chair of my own projects, armed with everything I've learned. I've learned more than I could possibly imagine from eight seasons of this thing."
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Earlier this month, WarnerMedia chairman and HBO overseer Bob Greenblatt confirmed that multiple spin-offs were still in development.
"It's a double-edged sword," he explained. "The answer is yes, we're having conversations about how do we smartly continue the Game of Thrones universe, but we have to be really thoughtful about not killing the golden goose and not putting on shows that aren't up to that quality level, and how many is too many.
"We're having all those conversations. I don't know yet what will come of all this material, but I think they've been smartly developing things that were really good ideas in this universe, and George [RR] Martin is involved."
Game of Thrones season 8 airs on HBO in the US and Sky Atlantic and NOW TV in the UK. Tune in to Digital Spy's Game of Thrones livestreams on Monday evenings, straight after each episode, on Instagram and Facebook.
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