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 90 Day Fiancé Spinoff: The Family Chantel – TLC Release Date, Details April 11, 2019 Roswell & Charmed Rebooted By The CW + Vampire Diaries & Originals Spinoff May 11, 2018 Courage the Cowardly Dog Reviving With Prequel TV Series November 24, 2018