Today during Sony's Tokyo Game Show press conference, Koei Tecmo announced 'Musou Stars' a crossover 'Musou' title featuring characters from a variety of Koei Tecmo franchises. Already announced are characters from games such as 'Ninja Gaiden', 'Dead or Alive', 'Atelier Sophie', 'Toukiden', Samurai Warriors', and even the publishers cult hit 'Opoona'. You can catch the trailer right here:
The game is due out in Japan in 2017. No Western release date has been announced as of yet, but it's a safe bet that this will be published at English at some point.