There’s currently no release date for Castlevania: Grimoire of Souls, but closed beta sign-ups are available in Japan and the official website is live.
Castlevania: Grimoire of Souls is a side-scrolling action game with a cooperative mode and boss rush for up to four players, as well as a competitive mode that pits four against four.
Grimoire of Souls takes place at a time during which Dracula has been destroyed, but that peace definitely isn’t going to last long.