The Rose Bowl and the Champions Bowl have not committed to join the playoff rotation for semifinal sites for the newly-formed college football playoffs beginning in 2014, according to reports.
If six bowls are used in rotation as sites for the semifinals over the course of the 12-year contract of the playoffs, each bowl should expect to host four times total. The language in Tuesday's ACC/Orange Bowl release suggested that the number of semifinals played at each site may not be distributed evenly, however saying that "it's anticipated that the Orange Bowl will host at least four semifinal games."
The Rose Bowl, pitting the Big Ten and Pac 12 conference champions, and the Champions Bowl, pitting the winners of the Big 12 and SEC, have incentive to keep their games separate. The two bowls may be able to draw more attention and money by maintaining their conference tie-ins. The Fiesta, Orange, Sugar and Chick-fil-A (or whoever) bowls would stand to gain as well, with more opportunities to take center stage.