The Big 12 will have 7-8 teams in bowls this year, depending on if 1 or 2 Big 12 teams get BCS bids.
These teams are already bowl-eligible:
Texas
Oklahoma
Texas Tech
Missouri
Oklahoma State
Those are five of our bowl teams. The Big 12 will have two (or maybe three) more bowl slots available.
These teams need one more win to be bowl-eligible:
Nebraska
Kansas
These teams need two more wins to be bowl-eligible:
Colorado
Kansas State
Even just needing one more win, if Kansas loses to Kansas State this weekend, they have a tough road to even get to six wins, finishing out against the Huskers (in Lincoln), Texas and Missouri.
Kansas State needs two wins and finishes against Kansas, Mizzou, Nebraska, and Iowa State. If they beat Kansas they have a good shot at six wins, but probably not any more.
Colorado needs two more wins and finishes against A&M, ISU, OSU, and Nebraska. They will probably end with six wins.
So out of the four teams fighting for the last two (or three) Big 12 bowl slots, none are likely to finish any better than 7 wins, and only one may even get to 7 wins. Even if we assume Kansas gets to 7, if the Huskers are tied at six wins with Colorado and Kansas State and there is only one bowl slot remaining, we would get the invitation over those teams IMO because our ability to fill seats would be more predictable to a lesser bowl than CU or KSU. (And remember, there may be three bowl slots left depending on the BCS bids which would leave room for CU or KSU if they get to six.)
I think we'll finish with more than six wins, but six is all we'll need to go bowling.