Persona 2: Eternal Punishment switches protagonists and gives the spunky (well, now silent) Maya the lead role. Her initial persona is Maia and from Greek mythology she is the daughter of Atlas.
Tatsuya returns, but something is… different about him. He uses Apollo, his ultimate persona from Persona 2: Innocent Sin, in Eternal Punishment.
The PSP version has a new storyline written by Tadashi Satomi that explains what happened to Tatsuya between the two games. Persona 2: Eternal Punishment comes out in Japan on May 17.