Missouri has agreed to stay with the Big 12, according to Sports Illustrated. So far, the teams left out of expansion talk now include Kansas, Missouri, Iowa State, Baylor, and Kansas State.
Boise State has joined the Mountain West Conference. While this school is not in the Big 12, it is part of the massive expansion going on this summer.
Texas and Texas A&M are not on the same page, meaning that they might split. The best guess now is that A&M heads to the SEC while Texas either stays put or moves to the Pac-10.
Nebraska is currently in a meeting to decide whether they will move to the Big 10 or stay in the Big 12.