We just added TCU and West Virginia. We are more than stable at the moment. There hasn't been ANY more talk about anyone leaving other than Mizzou, but they are gone and that's why we picked up WV. We are fine. You parinoid conference readers need to get a grip on life. Good God help you all.
I'm not paranoid, but you're kidding yourself if you think ISU would stay in the Big 12 if they were offered a spot in any of the other BCS conferences (not counting the Big East).