This was originally announced as an SCE Japan Studio game, but it seems it's actually a collaborative effort developed by Shift (God Eater), and Dimps (a whole lot of stuff, notably Street Fighter IV and some bad Sonic games). It's a 2014 release on Vita.
http://remoon.blog15.fc2.com/blog-entry-28234.html
http://remoon.blog15.fc2.com/blog-entry-28234.html