During the TCA HBO confirmed that House of the Dragon is in the works. This will be based off George R.R. Martin’s book Fire and Blood and will focus on the rise and fall of House Targaryen. The book covers multiple centuries and would be very difficult to adapt directly but gives a great deal of source material to pull from. The popular spinoff that was set in northern Sothoryos failed to be green lit after the pilot.
“Pilots – sometimes they come together, sometimes they don’t,” said programming chief Casey Bloys to Variety. “And I would say that was very much the case here. There’s nothing I would point to and say ‘Oh, this was the problem.’”
House of the Dragon is being co-written by Martin himself and is in the early script stages now.