Not a lot of info known so far, except that it's coming to PCs and Tablets (one presumes iPads). Here's the exclusive coverage from Kotaku
Akaneiro is an action role-playing game that takes players to a hand-painted world inspired by ancient demons and late Edo era Japan. Players join the The Order of Akane, an elite group of demon hunters, and attempt to rid a village of yokai. The blood of slaughtered yokai turned into crystalline shards called "Karma Shards", which are what the Order of Akane harvest. There is apparently a variety of weapons that can be upgraded as well.
Any game by the creator of Alice should at least pique most folks interest, I would think...