I also was considering having a female character just to be something different than I am now, but with the voice chat system, that might be awkward. I don't have a super deep voice but it's still obviously male (except for when it's not as I sometimes get called ma'am on the phone.)
However, that could be countered with some sort of voice modding tool that changes your voice as you speak. Not sure how possible that could be but that would be great for people that want to disguise their real life voice, not just for gender swapping but for privacy or other roleplay reasons as well.