As much as the B1G wants a pair of UVA/UNC/GT, I see it a lot less likely than taking OU/Kansas. The SEC would raid the B12 for OU/OSU before going at VT/NCSt (a rumored move a couple yrs ago). The PAC won't stretch 4 time zones, so the B12 if the onluonly on if current P5 players are to be targeted.
The B12 is where most have their sights set. It doesn't have a geographic center, a population center outside of Texas, or a cultural identity all the others have. And I don't see any cinferences going beyond 16. That works for FB and hoops scheduling. Any more iland a financial and logistical hit is incurred.