This is really the fault of the other conferences, who had the chance to ding this within the NCAA by not approving the change in rules that stated that a conference must have at least 12 members to have a CCG. Had they not done this, the B12 would be under more pressure to expand, which could set up a new round of conference realignment.
I don't really see why that would trigger a new round of alignment. All they would be doing is calling up G5 teams, and they would still just be the same size as the other leagues. I don't see why any of the other conferences would feel the need to respond to that.