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 Jane the Virgin Spinoff Cancelled At The CW December 5, 2018 Courage the Cowardly Dog Reviving With Prequel TV Series November 24, 2018 Krypton Spinoff Ordered By Syfy – Lobo Development Status, Premiere Date, Details June 13, 2019