I would bet as well that their ratings will take a major hit.
No way. It is said that more people are watching because of Bristol and the controversy. The executive producer is standing by her:
http://www.people.com/people/article/0,,20443659,00.html
I think their ratings will take a hit if the show goes with partnering females to dance together, as someone previously stated they read/believe that’s one direction the show will be going to next season. With Bristol being on the show, I believe their ratings have never been better.