God Wars: The Complete Legend will be released in Japan on June 14
Kadokawa Games has published the first official trailer of God Wars: Japanese Mythology War (to be known in the West as God Wars: The Complete Legend) that also confirms the Japanese release date. This game is the definitive edition of God Wars: Future Past that includes all DLC released so far including the Labyrinth of Yomi, as well as adding more brand-new content such as a new character named Orihime. This game will be released in Japan on June 14.
Note that although Kadokawa Games and NIS America have confirmed that this game is coming to the West as God Wars: The Complete Legend in Fall 2018, as of this news they only plan to release it on the Nintendo Switch, unlike the Japanese version which is also coming to PlayStation 4 and PlayStation Vita.