I personally think it's really unlikely but it would definitely be bad news for BYU because I think the chance for exclusion would go up significantly if two P5s were poached. In that case it might come down to a decision between Cincinnati and BYU, or BYU and Houston.

I still think the scales would tip in favor of BYU, but you never know how seriously the B12 presidents and ADs take the Sunday-play issue. Or how the recent rape/HC controversy might affect things.