Persona 4 Vita was announced in Famitsu.
"Persona 4 will see a re-release three years after its original launch. This time, it’s coming to PlayStation Vita. Persona 4: The Golden is an enhanced port for Sony’s new handheld, adding new characters, movie events, animated scenes, and more. It will include 1.5 times the amount of voice-overs seen in the PS2 version. Marie, voiced by Kana Hanazawa, is one of the new characters. Out in Japan in spring 2012, it will utilize the “communications capabilities” of PlayStation Vita."
Also, Persona Fighter by Arc Systems Works.
"A bit more surprising is Persona 4 The Ultimate In Mayonaka Arena. Atlus is teaming up with Arc System Works for a 2D fighter that will be released first for arcades in Spring 2012, then for PS3 and Xbox 360 in Summer 2012. The game is being developed by the BlazBlue team. The Ultimate in Mayonaka Arena has a new story that takes place two yeas after the events of Persona 4. Characters from Persona 4 and Persona 3 will feature in the game."
http://www.neogaf.com/forum/showthread.php?t=442970
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Simplicity is the ultimate sophistication.