OK, do it.
It would be tougher for Minnesota to give up the current WCHA schools because of the in-state pressure which can be brought to bear to try to get them to play SCSU, UMD, BSU and MSU-M. As for Wisconsin, I think the hockey fans would miss NoDak, UMD and others but there aren't going to be legislators from those other towns making noise about 'forcing' them to play each other.
So, then, Wisconsin loses those 10 possible opponents. That leaves 40 other teams and UW has to find 7 of them. A few - Boston College, Boston Univ., maybe Notre Dame and Miami - could demand home/home series. I still think that UW could get 7 of Lake Superior, Western, Huntsville, Ferris, any ECAC school, any Atlantic Hockey team and half of Hockey East to come to Madison.
They would be counting on two things to get into the NCAA:
A) winning a six team conference (not 12) for an autobid
B) collective strength of schedule
A could be easier than it is now. B might be tougher. Between the two, I'm guessing UW probably likes it chances.
Again, I'm not saying I like the idea. But WCHA unity isn't guaranteed - nor is ruling out UW wanting to continue its relationships. I'm just suggesting UW seeking 14 home games isn't far fetched.