So there are still two rooms left for new characters, without changing the shape of the house. I can get behind two more, but that seems like the limit. Anything more may seem cluttered.
Also.. I don't mean this as just criticism, but this game has been spinning its wheels for a bit. Not much has really happened with story and character development. A new character is good, but there needs to be some real work done on the other characters as well as. Also, where is this game going? Has it been planned out? The story needs some work too. It feels like it's just been some sex scenes stapled together for half a year at this point, and nothing progressing.