The B12 is still in denial. They believe because they have some traditionally winning program (Oklahoma, Texas, etc..) they remain an attractive conference. I am sure in their minds Zona and ASU would be lucky to get an opportunity to play in the B12.
The reality is much different. The B12 is a poorly run league without a common strategy. Due to splintered visions and leadership they are slow to react and have fallen behind the other P5 conferences in terms of income and viewers (ok, it is currently a battle between the ACC and B12 for most vulnerable but I am putting B12 in the #1 spot since the ACC's territory is more populous.) There is absolutely no team from the Big10, SEC or PAC10 who would move to the B12.
That said, hopefully the B12 is putting feelers out to others P5 schools. Once every current P5 teams turns down the B12 they will have to accept: 1. they need to expand if they want to survive 2. their current expansion options are at the G5 level.
We know who is at top of the G5 options. I really believe if UConn gets an opportunity we can build a competitive football program and maintain an elite basketball program. UConn offers more to the B12 than any other school. We may be a "poor cultural" fit and geographically far away but sometimes you've got to draft the best available player as opposed to the position you need. UConn is the best available player for the B12.