Cogman co-wrote many notable episodes of Game of Thrones including Season 3’s “Kissed by Fire, Season 6’s “The Broken Man,” and Season 7’s “Stormborn.”
“I’m eager to start the next chapter, but a part of my heart will always live with Game of Thrones.
It was previously reported that Cogman along with Jane Goldman, Max Borenstein, Brian Helgeland, and Cary Wray had been tapped to each develop five Game of Thrones spin-offs.
Goldman’s prequel series is the only one confirmed to be moving forward, with pilot commitment from the network already in place.