After Nomura saying that adding female player characters would be hard to do in this I have a feeling that female characters may end up being guests in the party so probably not playable but they will have a role alongside your main party in certain battles. It is not a concern for me if there is a lack of females as all I want is an enormous explorable world, great story and gameplay along with airships, chocobos and good character developement. Maybes a few other things obviously like classic summons returning, we have already seen how amazing Leviathan looks.