The ACC teams are not going to the PAC. It looks like the ACC and FSU/Clemson will settle on a new revenue structure. Additional revenue will be needed. This could lead to Utah and other teams joining the ACC to build the ACCN revenues.
At the end of the day, in 5-6 years if the B1G and the SEC decide to expand to 24 teams each, it will be at the expense of the ACC and the B12.
UNC, NC St, UVA, VT, Clemson, GT, FSU & Miami could all end up in the SEC. ND, Stanford, Utah, BCU, SU and SMU could all end up in the B1G. Duke, Wake, Pitt, Louisville & Cal could all end up in the B12 giving them 20 teams. Depending on TV revenue the B12 could look to add 4 teams. UConn, SDSU, OSU and WSU