Rutgers appears trapped. Good academic reputation (AAU), flag-ship institution of a populated state, been playing college fb from the get-go, right at big media and transportation hubs, etc.
But, Rutgers sports history has come up short on that sustained, glowing success that would make them more attractive to the other BCS conferences in or near the region. Even if the ACC expands again, impressions are they would be #3 on the select list, behind ND & UCONN.
The then, B10, passed on them and other eastern schools when Nebraska got added.
Would the B12 be interested in Rutgers at all? They took WVU---of course who has been comparatively, very successful.
Rutgers may just remain another BCS's conference 3rd or 4th choice, and unfortunately remaining regulated, not by desire, to the confusion and discontent of the BE. The same for UCONN perhaps; but UCONN and Kansas in the same conference would make an awesome bb rivalry.
clearly, ND and then Uconn top the list for the ACC. The only longshot for Rutgers would be if the ACC wanted to goto 16 and ND passed. But even the choice for 16 is a longshot. That said, Rutgers is likely more attractive to the ACC than the big Ten, since Rutgers would add another bridge from the SU/BC/Pitt markets into the existing ACC county.
As for the Big 12, it's an interesting option. Would seem like a long shot. But if you are the B12, and you see the moves made by the other conferences, what is your play? WVU was the #10 replacement, and makes sense strictly from a competitive standpoint on the field. But in the game of TV contracts and expansion, Rutgers might actually be a better option than say, BYU (with their Sunday/TV baggage) or Cincy. Rutgers and WVU are fairly close. Rutgers vs Texas or Oklahoma would be a big draw game on TV in the region. In the end, that has always been Rutgers problem: the only games people would watch would be Miami and VA Tech, when they started to improve. But at that time, Rutgers was pretty low on the totem pole in the Big East and with their own support. But with Texas, Oklahoma, WVU, TCU football games, that COULD change. COULD. Throw in Louisville and you could have some familiar members in the division:
Of course, the problem is that the competition would be stronger in the other division.