George R.R. Martin and HBO are steadily building up a Westeros Cinematic Universe, with ambitious plans to expand the Game of Thrones IP, as apart from both its spin-offs, House of the Dragon and A Knight of the Seven Kingdoms, receiving their next seasons leading to 2028, multiple other projects are also in development.
This follows the announcement of HBO’s roadmap, which lays out the next chapters for two of its prequel series, House of the Dragon, which is now in its second season, and A Knight of the Seven Kingdoms, which will release in January 2026. The former will receive its third and fourth seasons in summer 2026 and 2028, respectively, while the latter has already been renewed for a second season due out in 2027.
Additionally, writer George R.R. Martin has even more plans in store for the franchise apart from those already confirmed, with the 77-year-old teasing during the 2025 Icelandic Noir Festival (as reported by Los Siete Reinos) that “there are other Game of Thrones spinoff projects in development.”
“The majority are prequels, and there are several in development,” teased Martin, “Maybe five or six shows, and I’m not developing them alone, I’m working on them with other people. And yes, there’s a sequel or two in the works.”
Among the many supposed prequels teased, at least one of them has been previously confirmed, that being a series centring around Aegon the Conqueror, which will thus be set roughly 300 years before the events of Game of Thrones. While not much is known about it at this point, it will likely follow Aegon I Targaryen and his two sister-wives, Rhaenys and Visenya, as they conquer six of the seven kingdoms in Westeros with the might of their army and three dragons.
Most interestingly, however, is the existence of a sequel, especially considering how poorly the show’s final season wrapped the series. Martin has yet to complete the final two books in the A Song of Ice and Fire series, The Winds of Winter and A Dream of Spring, so a sequel will likely link to their events.
Kevin is a reformed PC Master Race gamer with a penchant for franchise “duds” like Darksiders III and Dead Space 3. He has made it his life-long mission to play every single major game release – lest his wallet dies trying.
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