Originally Posted by cj iwakura
Honestly? I think we're just getting the two added quests, and those rumors won't amount to much. But I hope to be proven wrong.
The remake also includes the whole new Sumaru Climax Theatre, which features sidestories written by various other authors from Atlus. The stories are like quests and in the end, players will have to face a boss. Additionally, players can make their own quests.
"PlayStation Portable Remake" <http://megamitensei.wikia.com/wiki/Persona_2:_Innocent_Sin>
Confirmed but still very little info about what making a quest entails.