I'm not worried about realignment effecting the big east. Maybe I am being naive, but the real worry is that someone poaches UConn. The Big 12 passed. The SEC/Big Ten will not add UConn. So basically that leaves the new look Pac-12 who I am sure will offer them a full share. Pac-12 media rights deal will not be so much bigger than the Big East that they are will to increase the travel and decrease the prestige. So no worries there.
I know what you're thinking what about the ACC. The ACC pays +/- $40M per school. UConn would jump at that in a heartbeat. But why would the ACC do it, ESPN would have to increase their media rights deal by more than $40M annually for it to make sense for the ACC. They are not going do that. What happens if FSU, Clemson, and Miami leave?
Multiple things have to happen for that to occur. They could either 1) may a prohibitive leaving fee for breaking the MRD or 2) Win a law suit and 2a) pay a leaving fee and 2b) find a conference to take them.
We know they wont do number 1 because that's what they are suing about. So let's pretend they win their suit and pay a reasonable (somewhere north of the $27.5M that the AAC would charge as an exit fee). They then have to do the most difficult thing, find a conference that will take them and pay them more money. These teams are not Texas and Oklahoma. FSU hasn't been elite since Jimbo Fisher left, UM hasn't been elite in 25-30 years, and Clemson is a mid program that had an incredible run when they had two all world college qbs in Desaun Watson and Trevor Lawerence back to back. These are teams on the decline. Sure the Big 12 would take'em, but there's not much more money there than in the ACC. The big 10 might take them in a deal like they gave OU or UDubb, where they get half shares until the next MRD. The SEC is not going to touch them.
So my prediction, the ACC doesn't implode. UConn doesn't go anywhere immediately (unless the Pac-12 gets so desperate they take UConn as a football only, but that means it has come down to either UConn or Sac State and that wont effect us).
I could be wrong, but I'm not worried about the future of the big east. And if Yukon leaves, I think we invite Dayton, VCU, L-Chicago, and Drake, to get to 14 (with Charlestown in the wings if one says no).