In ep9 win costume contests can Zoey, Josy, Maya, Riona, Camilla, Leon, Jill, Lily and Bella can win costume contests. These are the 9 variables that carry over with the save.
I'm sure that depending on whether a girl wins a contest or not this prize will be standing in her room. This means that if the conversation with the girl will be in her room where the trophy stands it means that this scene must be rendered twice. The scene where she didn't win the trophy and the scene where she did.
If there will be such scenes, they will probably be short, or DPC will just put them in some place where the camera can't always reach. For example, Bella's trophy might be in her bedroom, while t MC will talk mostly in the library and dining room and only be in her bedroom once.
This is just a casual illustration of how the game will work in the future.