I can't see any expansion being done that doesn't keep the footprint contiguous. The B1G has done it the way they have for a reason, and I don't see them taking on a school like FSU without bridging the gap first. Any new addition would also likely have to have AAU membership. With that being said, I think Virginia, Syracuse, Kansas, or Missouri are the best options (in addition to Notre Dame). Unless they add two schools in one direction, then I say southward expansion makes the most sense with Virginia and UNC. Northeast expansion of Syracuse and Boston College would be alright. Or southwest expansion could include Kansas and Oklahoma. By the way, I assure y'all that Oklahoma and OK State are not attached, there were huge write-ups in the paper out here speculating further expansion after the last major round. Quite frankly, the schools who are most nervous are KU and KSU. If the Big 12 were to be split between the other major conferences there's fear that they'd be left, a la UConn.
As far as Rutgers/Maryland, I'm in the minority, but I like the additions. I think they add good mid-level competition and I especially think Maryland has the potential of being a contender in the East in coming years. You look at their recruiting and they've made their way into a lot of highly rated prospects 'Top 5's. They offer a lot as a school and location and they happen to be in (and around) one of the more up and coming recruiting beds in the country.
One last thought, from a basketball standpoint how fun would the additions of Kentucky and Kansas be? (Or Syracuse/UConn/UNC/Duke)