And some stuff from your final IS save carries over into EP. Of course, that was dummied out of the original US version since we didn't get EP. And EP would need a retweaked localization since the original script made allowances for the goofball changes in Revelations: Persona. For example, EP made references to Lunarvale (Mikage City in P1) and used hybrid names for carryover characters (i.e. Nate Nanjo, Mary Sonomura, Guido Kandori- an extra allowance was made for his name originally being Guido Sardenia).