Game Of Thrones Prequel – HBO Spinoff Status & Premiere Date Post author:TVReboots Post category:Game Of Thrones / TV Show Prequels / TV Show Spinoffs Tags: Game Of Thrones, Game Of Thrones TV Show Prequel? You Might Also Like Wallander Prequel Series On Netflix: Young Wallander Cast, Release Date September 12, 2019 Power Spinoff Shows Set For Starz? Status & Release Date October 25, 2018 Grease: Rydell High Musical Spin-Off TV Series Ordered By HBO Max October 17, 2019