Eve in the harem? I can see it, though even though we don't know much about her and such... I get the feeling she might just be involved with Syndicate and could very well be trying to get close to us for reasons. Kinda just a gut feeling I have and sure there isn't evidence to prove it but, I wouldn't be surprised if my hunch here would be correct. Or perhaps she is working with Ulysses. Could be a whole Aika situation, turn her against her masters, find love and 3 kids.
Maat is basicly Jasmin, as one was saying they were hoping for a Jasmin. Miss her already to be honest. Really loved her outfit and style, and her lovely skin. Would be curious to what she could add to the Harem though in terms of skill other than awakener of passions and lewd times.
Calypso is a given for Hareming. Though, I do get the feeling we maaay end up being at odds with her at some point, with her wanting to do something and us telling her no. Just a feeling despite how friendly and close we may get, she is a powerful ally/potential rival that could turn on us potentially, despite our treatment to her.
Edit: Glossed over entirely... Note to self, less works and put everything in spoilers next time...