The remaining ACC Big 12 members merging would be our worst case scenario. Don't think it would happen though since if the ACC implodes, The Big 12 will have a leg up since it has more teams, and wouldn't want teams like Boston College, CAL, SMU, Syracuse, and Wake Forrest. Pitt, North Carolina State, and Louisville I can see. It will all depend as to how many teams the ACC loses; it cant be a mass exodus for them .However, I do believe the ACC is likely to remain in some form, and I think they will look at USF, Tulane, Memphis, Boise State, and San Diego State to replenish.
The part where they believe that Miami will be a main target is great for us since I assume the ACC will want a Florida team.