If auburn wins, at number 7 they are. If not, then auburn would most likely take their place.
The BCS has to fill its at large spots, and the system can only take 2 of the 3 big 10 schools per rules. OU will either be rewarded an automatic bid or drop with a loss, and there's no way that lsu would jump up above arky or anyone in a bye week. Same way I can't see a 12 mizzou going anywhere either without playing a game.
The only school that feasibly could make any movement is boise (assuming they still have another game) but even then how could whatever small school they might play warrant a jump from 11 to 7.