Not much. Bowls still pick based on ticket sales and TV ratings, not conference standings. Really all that matters now is if Oklahoma finishes 10-2. If they do, there is a 2nd Big 12 BCS team. Otherwise just 1.
If Oklahoma goes 10-2, it looks like this, otherwise, knock everyone down a peg.
Tostitos Fiesta Bowl: Kansas State
Allstate Sugar Bowl: Oklahoma
AT&T Cotton Bowl: Texas
Valero Alamo Bowl: Oklahoma State
Buffalo Wild Wings Bowl: TCU/Texas Tech
Bridgepoint Holiday Bowl: TCU/Texas Tech
Meineke Car Care Bowl of Texas: Iowa State
New Era Pinstripe Bowl: West Virginia
Heart of Dallas Bowl: Baylor(if eligible)