I know this may be a bit audacious, but I believe that, in this open and civilized 21st century, we should no longer hide behind homophobia and discrimination.
Therefore, it is my highest hope that the development team will consider including some heterosexual characters within their game. I know that the majority of the gaming community may find this controversial, or even distasteful, especially since most of them were raised in a rather supressed, conservative environment, but I think that at least a lone voice should be heard.
Heterosexual characters would go a long way towards enriching a game universe. That is my opinion.