A second Game of Thrones prequel series is reportedly in the works at HBO, according to Deadline and The Hollywood Reporter.
Both outlets are reporting that the new series is close to a pilot order. Written by Colony co-creator Ryan Condal and produced by Condal and A Song of Ice and Fire author George R. R. Martin, the potential prequel is based on Martin’s Fire and Blood, a history of the Targaryen dynasty. Set 300 years before the events of Game of Thrones, the series would reportedly focus on the dominance and decline of House Targaryen.
Source: IGN.com Game of Thrones: New Fire and Blood Targaryen Prequel Series in the Works at HBO