Atlus is currently refreshing PSone RPG Persona 2: Innocent Sin for the PSP. Announced in Japanese mag Famitsu (via Siliconera), the release will be in line with that seen in Persona, adding widescreen visuals, gameplay tweaks and a new animation for the opening (the original movie will also be in there for purists). Shoji Meguro, who was in charge of the Persona remake, will direct this project.
Persona 2 actually released in two parts as Innocent Sin and Eternal Punishment. The latter made it to North America in late 2000, but Innocent Sin has never been officially localized for distribution. We're following up with Atlus to see if it plans on bringing Innocent Sin stateside this time around.
Update: Atlus has "no comment" on a North American release of Persona 2: Innocent Sin.