I don't see it either, but Clemson does seem to be the hot rumor right now. Notre Dame+1 (Oregon or Stanford) then some combo of ACC schools, some usual suspects (UNC, UVa, GT) with some I wouldn't expect (Clemson, Miami).
Just a thought - The ACC didn't keep up with the SEC for whatever reasons - UVA, UNC, Duke, have been driven by academics for some time is one thought - happy to be a basketball-first conference is another. As a result, ACC stadiums compare more with Indiana, Maryland, Rutgers, and Northwestern - Maybe the ACC would be happy to settle into a Div 1B football conference, happily letting Miami, FSU, and Clemson find their way into the SEC, while remaining the premier basketball conference. I don't think the SEC or the BIG is interested in playing more games in stadiums that hover around 60K.
Team Capacity Average Attendance Capacity Rank Attendance Rank Overall A.C.C. Score
Florida State 82,300 89.0% 1 6 7
Clemson 81,500 99.4% 2 1 3
Louisville 55,000 89.2% Tied for 9th 5 14
Boston College 44,500 67.9% 12 12 24
N.C. State 57,600 98.9% 8 2 10
Wake Forest 31,500 84.7% 14 7 21
Syracuse 49,262 65.2% 11 13 24
Miami 64,982 63.5% 5 14 19
North Carolina 63,000 78.8% 6 8 14
Virginia Tech 65,632 92.7% 4 3 7
Pittsburgh 68,400 73.5% 3 10 13
Georgia Tech 55,000 92.2% Tied for 9th 4 13
Duke 40,004 77.9% 13 9 22
Virginia 61,500 70.4% 7 11 18