TV News Game of Thrones: A mysterious new A Song of Ice and Fire addition has been discovered in the works Wed Mar 17, 2021 at 5:48am ET Tyrion Lannister reads A Song of Ice and Fire, as seen in Season 8 of Game of Thrones. Pic credit: HBO HBO currently has a multitude of Game of Thrones spinoffs in various stages of concept and development. However, a new and previously unknown one may have just been discovered. According to Fansided, a new adaptation of George R. R. Martin’s A Song of Ice and Fire book series may be in development. While further details are not yet forthcoming, it’s been noted that a new entry has appeared on the Game of Thrones and House of the Dragon executive producer Vince Gerardis’ website for his production company Startling Inc.