While speaking with Variety, HBO chief of programming Casey Bloys spoke on the potential timelines for some of the channel's most anticipated shows. While his comments on new Watchmen were a little uncertain, Bloys was at least willing to give a release year for the Game of Thrones spin-off House of the Dragon.
Bloys said his "best guess" is that the Targaryen prequel series will premiere some time in 2022, which isn't very surprising. While the spin-off has been in some form of development since 2017, it was only picked up last October. Television pilot production schedules would demand that this project take a while to complete, especially one as massive and effects-driven as Thrones. If you're one of the lucky few who is still begging for more Thrones, then you're going to have to wait a bit.
On the bright side, A Song of Ice and Fire book fans have some content coming much sooner. George R.R. Martin recently announced that he has completed the paperback editions of Fire & Blood: Volume One, and it will be released May 5, 2020. The wait is over!