My take is that Title IX will be revamped to include scope of more than one gender.
The easiest out, when considering whom to destroy, is the taxpayer. Just create an entire new tier of high school and collegiate sports for neither male nor female participants. Track already trains and competes in a co-ed methodology, so adding more events to meets for the transexuals to run alone makes a meet take longer but otherwise gives everyone what they "want." You have to create new locker rooms, and you have meets that run longer, resulting in longer away trips for bus transportation and so on, but it's the least disruptive solution.
The transexuals don't want to race against men. The women don't want to race against men or transexuals. The men don't give a *expletive deleted*it who they race against, they just want to see who is the fastest.
Of course, this doesn't resolve the issue with transexual males that actually think it's fair to race against women when they grew up and went though puberty as male. The only solution there is to slam them over the head with a tempered steel clue bat with the kinesiology studies proving how *expletive deleted*ing stupid and uninformed they are.