I agree that NCAA should be kept amateur, but I wish gymnasts that went pro could still compete in college just without a scholarship. Since female gymnasts tend to reach their peak and aim for the Olympics when they're 16-18, they basically reach their max earning potential from endorsements and sponsors before they reach college age. For hockey/basketball/football, it's after college where they have the potential to make the most money as professionals. Most gymnasts that go professional and onto college usually do so a couple years after they're out of the spotlight and aren't making a ton of money from endorsements anyways. Jordyn Wieber for example. Competed elite, went pro, and now is at UCLA being the team manager and probably doesn't have very many lucrative professional endorsements. I think it'd be fine if she competed gymnastics now since she basically doesn't do a whole lot as a pro athlete.
Even though I think an exception would be nice in cases like Bross or Wieber, I think NCAA should be kept amateur overall. I just think it's a little different for female gymnasts because if they want to capitalize on their potential they have to do so basically before they even apply to colleges whereas someone like Jonathan Toews will reach his earning potential/athletic peak around the age when he finishes school.