If they did it well and not in a hentai "let's have girls falling in love with each other so guys can get kicks out of it" way it might be interesting for the series... thinking sort of like the anime Utena. That's really complex in a good way because of the difference in relationships, but I think FF is always going to stick to "mainstream" themes ie heterosexual relationships. Most societies don't think of it as unacceptable or taboo to be homosexual any more, so maybe something like that will happen eventually.
img>katyjag