AAS/AIS and Tsuchii (Girls und Panzer: Little Army, Girls und Panzer: Little Army II) launched the High School Fleet: Maidens of Loreley (High School Fleet: Loreley no Otome-tachi) spinoff manga manga in the same magazine in June 2016, and ended it on August 28.
Aniplex opened a website on December 9 that revealed that a smartphone game based on the High School Fleet anime is in development for iOS and Android devices, and it is slated for a 2018 release.
The anime’s official Twitter account announced in February that various projects and programs are in the works.
AAS/AIS and Kanari Abe launched the main manga adaptation in Kadokawa’s Comic Alive magazine in October 2015, and the manga is ongoing.