Persona 4 Arena (Persona 4: The Ultimate in Mayonaka Arena) was yesterday released in Japan on both Playstation 3 and XBox360. This does not mean that the screenshot batch releases are over however… with ATLUS Japan releasing these screenshots previewing the story modes for Elizabeth and Labrys as well as the inclusion of Fuuka Yamigishi (Persona 3) and Nanako Dojima (Persona 4) as commentators “NAVI” for your battles which you can use in lieu of Rise if you so desire.
On the games official website, it mentions you can also select Teddie, Mitsuru, Yosuke and Aigis as NAVI voices. There is no word on if all of these voices will be made available in the English release.