You don’t need to beat Persona 2: Innocent Sin to utilize this feature either. Persona 2: Eternal Punishment will retain Tatsuya’s level and stats. The fusion skill list, monster conversation commands, and spare tarot cards will transfer into Persona 2: Eternal Punishment. Atlus hints that transferring Innocent Sin save data may change some event scenes in Eternal Punishment too.
Persona 2: Eternal Punishment comes out in Japan on May 17.