In addition to the whole willing/unwilling team thing, at some point, basically now, natural selection takes over. Schools like Nebraska and Iowa that may have fled to the B12 have no option to do so now. The B12 will have started their season before we even get a re-vote.
The SEC has already planned on playing a 10 game conf schedule, I haven't looked at all the dates, but I would suspect while they could float a couple of teams coming over, they probably can't float half the B1G into their conference.
It seems to me that our only chance at a "real" season is for the B1G to reverse course. Anything else will be a patchwork of schedules and tv payouts that probably will be an exhibition season rather than having real playoff implications.
The relatively amount of risk has been decreased as well. While schools may have thought Spring football was a ghost, they seem confident November football is not. Uni's are probably going to be alot less froggy about upending norms and contracts, when the argument is about 6-8 weeks delay instead of 4-5 months followed by never.