Get excited GoT fans – There's exciting content in the works! HBO is developing three more Game of Thrones prequel projects.
via The Hollywood Reporter:
One of the projects, working title 9 Voyages, is from Rome creator Bruno Heller and follows Lord Corlys Velaryon, a.k.a. The Sea Snake, the Lord of the Tides and head of House Velaryon. The character also appears in the upcoming greenlit GoT prequel House of the Dragon, where he's played by actor Steve Toussaint. So this effort represents a potential spinoff of a character from a series that hasn't yet been shot (let alone aired).
A second project, working title 10,000 Ships, revolves around the warrior queen Princess Nymeria, a revered ancestor of House Martell who founded of the kingdom of Dorne (she became so legendary in the realm that two characters bore her name in the original series – Sand Snake Nymeria Sand and Arya's direwolf). Her story is set roughly 1,000 years before the events in Game of Thrones, making it much older on the Westeros timeline than any of the other previously announced projects in the works. Also, Game of Thrones added a storyline involving Dorne midway through the series that fans felt struggled to feel like an organic part of the show. If greenlit, the Nymeria project could give an entirely new and redemptive take on Sunspear.
The third project is set in the notorious King's Landing slum of Flea Bottom – the maze of tight streets in the capitol city where characters like Davos Seaworth and Gendry Baratheon were born. The projects are in addition to the upcoming greenlit series House of the Dragon, which begins filming in the UK in April and stars Olivia Cooke, Emma D'Arcy, Paddy Considine and Matt Smith. Dragon follows the story of House Targaryen 300 years before the events in GoT and builds to an epic civil war that tore Westeros apart. The series is from co-showrunners Miguel Sapochnik and Ryan Condal is expected to premiere in 2022.