Game of Thrones prequel House of the Dragon has begun production and will release in 2022 on HBO and HBO Max. Expected to air on Disney+ Hotstar in India.

source https://gadgets.ndtv.com/entertainment/news/house-dragon-game-of-thrones-prequel-spinoff-filming-production-release-2022-confirmed-hbo-max-2422690#rss-gadgets-all