My understanding is there was a longtime voting bloc made up of UF, UGA, UK, and S. Carolina, who, together had enough votes to block expansion. The deal was they all agreed to vote against the admission to the SEC of FSU, Ga. Tech, Louisville, and Clemson.
If that was the case, I'm not sure how that might have changed since the additions of Texas A&M and Mizzou. Don't know how many votes are required in the current makeup, and now obviously that probably changes again with the additions of UT and OU.
I don't know when and how it will happen, but I think it was inevitable that the Big Ten and SEC were going to break up the ACC. They already killed the PAC and the Big 12, the ACC was never going to stand in the way of their empire-building. I figure they'll raid the ACC of all its schools worth having, forming two super-conferences. And a few years after that, the handful of schools driving the tv contracts and revenue generation will shed the have-nots, the Vanderbilts and Purdues, and form one giant super-league spanning the country that tells the NCAA to get lost.
Then the Emperor will gleefully rub his hands together and say "Your journey to the NFL-side is almost complete."
