Popping by mayonaka.jp yields this teaser screen. Compare it with Persona 4’s OP:
Now this is worthy news indeed. It could mean a new anime, a PSP port or an FES. All of which would definitely be awesome additions to the Persona family, which at the moment lacks a current-generation console game or its equivalent. Looking forward to more details!
EDIT: Alright~ It’s an anime~! According to http://www.p4a.jp/…or is it? XD