Not an expert at this, but I don't think state universities can only be sued in their state, as the state itself can. And, in any event, only federal courts (I think) have jurisdiction in disputes between states, so as soon as Rutgers and UConn come in as parties, in addition to the Big East, that would be another reason for removal.
Gars -- I'm not getting your apparent glee over the Big East defaulting. Unless UConn is in the ACC by then, why do you think that will happen, or why would you like to see it happen.