HBO said it was in no rush to develop Game of Thrones spinoff series. It is true. The series said goodbye in 2019 and no prequel has yet been released with House of the Dragon in production and scheduled for 2022. But they also said that, despite developing four series at the same time, they did not feel the need to produce more. from a series set in the GRR Martin universe. This is no longer so true. As portals like Deadline report, there are three other new projects in development.
The series have the following working titles: 9 Voyages, Flea Bottom, and 10,000 Ships . The one with the most numbers to receive green light is Sea Snake , which is also called 9 Voyages and which focuses on the sea voyages of Coyles Velaryon aboard the Sea Serpent. He is a man who traveled to Pentos, Dragonstone and all over Westeros. It is the one that looks the best because HBO already has a contracted team working on developing the series, including Bruno Heller, creator of The Mentalist and a reference work within the historic channel such as Roma.
‘9 Voyages’ would focus on Coyles Velaryion’s sea voyages, from Pentos to Dragonstone and all over Westeros
The other two spin-offs , however, do not yet have associated names. Flea Bottom would focus on the poorest and most troubled district of King’s Landing, the corrupt capital of the Seven Kingdoms. Narrow streets, unsanitary conditions, prostitution and taverns are a good setting to develop a drama series.
Instead, 10,000 Ships would be set a millennium before the events of Game of Thrones to tell the journey made by Princess Nymeria and the survivors of the Rhoynars, one of the ethnic groups that ended up shaping the society of Westeros and the Seven Kingdoms. They had to flee Essos during the Rhoynar wars with Valyria and even settle in Dorne, the southernmost part of Westeros.

These three embryos are added to two already announced projects: the adaptation of the Tales of Dunk and Egg that is also developed by HBO and an animated series that is being tested from HBO Max, the most commercial and carefree branch of the television conglomerate.
Regarding the five projects announced in 2019, it seems that only House of the Dragon will have survived, which will focus on the dynastic fights of the Targaryen family three centuries before the events carried out by their descendants Daenerys and Jon Snow, including the War. Civil between different factions of the family. The cast includes the signings of Matt Smith ( The Crown ), Sonoya Mizuno ( Devs ) and Olivia Cooke ( Bates Motel ).