Forgot about Notre Dame already?
The B1G refused to capitulate to ND's demands for football independence. While I believe the ACC got much better teams in the expansion, I do not consider the partial membership of ND as one of those teams until and unless it joins the conference fully.
The real question is what ND would have done
I'm not sure what creates the perception that a UConn/Rutgers combo owns the NYC market or what owning it really means. The Big East had the UConn/Rutgers combo along with Notre Dame/Syracuse/St. John's/Seton Hall, and it fell apart. So much for owning the NYC market. Are we to believe that some other smaller collection of these schools in another conference has a better chance of owning NYC? It's not a college sports town. The Big Ten will only add UConn or anyone else if they can get enough cable subcriber fees to make it worth their while.
The B1G does not care whether it "owns" the NYC market. As you point out, it just cared whether it could force the BTN onto NYC's basic cable, which it now has. Is that enough to compensate for bringing in an embarrassing program like Rutgers, we will see. From my perch in B1G country, I have not seen a lot of enthusiasm for the watering down of the conference except from some alums living in the NYC/DC areas. There is an understanding, however, that the moves were done purely for business reasons.
What I would find to be interesting is whether adding a school would affect the cult-like devotion some B1G fans have for Jim Delany. It is amazing how many people think he can do no wrong and then ignore his missteps. "Leaders" and "Legends"? Really? Also, the willful blindness these same fans have over the issues with the conference. There are some that still believe UNC, Virginia and Georgia Tech are still in play because who would turn done an invite to the B1G (even though the rumors are that they did)?
As an alum of both a B1G school and ACC school (thank god), I am a fan of both conferences and want them both to be successful. I reserve my hatred for the $EC and its culture of corruption.
Rather than UConn, which does not offer any football cachet or new markets, if two more schools have to be added, I would like them to come from the XII. Obviously, the Hope Diamond in the mix is Texas. They are an AAU school and have a lot in common with B1G schools. Because of the migration of its alums, I do not believe Texas will join any eastern conference, whether the B1G or ACC. Instead, if the XII falls apart, I believe it will move to the Pac and have the LHN integrated into the regional Pac networks.
If Texas does not join, I do not believe the B1G will accept any of the other Texas schools. This leaves Oklahoma, Oklahoma State, Kansas, Kansas State and Iowa State. Iowa State is out because there is no reason to have two schools from the same state. Only Kansas is an AAU member, which at one point was a consideration for new schools (Nebraska was a member at the time of the invite and was booted out, Rutgers and Maryland are both members). Kansas does nothing to boost football though. Oklahoma would boost football, but is not an AAU member. It has also indicated it does not want to be separated from Texas. In the end, adding those two schools would do a lot more for the conference than UConn. It would also necessitate Purdue moving to the East so each division (if they still need to exist) would be nicely split by time zone.
For the ACC, I would not mind adding UConn as it fits in the footprint. I am just not sure it adds anything from a market or football perspective. If Tulane could get its athletics in better shape, I would love to see it in the conference. A good school and great location to travel for games. The ACC has enough of a presence in Florida that it would make no sense to add one of the directional schools. Cincy and Temple do not excite me from either an academic or athletic standpoint. Which leads me back to UConn as a default addition if needed.
In the end, I would be surprised to see any conference make any additional moves until the play-off has been running for a couple of years and we have better handle on the $$$ and access.