I don't see the point of adding schools to existing territories or 2 schools from the same territory, unless the school is a big brand. I think the B12 will be sorry for doing so in their next TV contract.
Also, the SEC will not want to absorb the ACC. They won't take both FSU and Miami. Maybe not even one. The B18 can always get into Florida anyway so you aren't stopping anything. It doesn't make sense for the SEC to take GA Tech. Out of the 4 Carolina schools, I only see one making cents. In VA, only one. Adding Louisville is not worth it. I don't see adding the three Northern schools, unless Notre Dame comes which is very very unlikely. So the SEC really would only want FSU, Clemson, UNC, and VA Tech. The other 10 make little to no cents.
I think the SEC will have more interest in going West. I think Kansas, Colorado, BYU, Arizona State, San Diego State are all potential candidates.
I could see a P2 of 24 schools each. SU has an outside chance of making that, but it is more likely that we don't get an invite. Personally I rather see SU stay in a rebuilt ACC than join a national 24 team B12. Give me FAU, Duke, Wake, James Madison, Navy/Georgetown, Villanova, Army/St Johns, SU, UConn, BC.