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 Property Brothers Spinoff: Property Brothers: Forever Home Release Date, Details April 11, 2019 Star Trek: Discovery Gets Short Treks Spinoff Series September 20, 2018 Pacific Rim & Altered Carbon Animated Spinoff Shows Announced By Netflix November 9, 2018