A Yahoo Japan-published release schedule has listed Disaea 3 for launch on the PlayStation Vita.
Nippon Ichi Software (NIS) has confirmed its support for Vita but it yet to officially announce any titles. According to the now-removed Yahoo listing 'Disgaea 3 Return' is set to be a PS Vita launch title.
If true, it's unknown if the Vita version will be a straight port of the 2009 PS3 game, Disgaea 3: Absence of Justice, a remake or a spin-off.
Siliconera notes a tendency for NIS to pack in new content with its ports, and Disgaea 3 has plenty of DLC it could include with the initial purchase of a possible Vita version.