If the need to build a true super conference arises you'd need to dump wake and duke to make room for more competitive teams to match the SEC. Truth is there aren't enough true powerhouses that have geographic fits to match the top heavy SEC becoming even more top heavy.
You have wisky OSU mich and PSU in the B1G and the 3 or 4 legit PAC12 teams and that is it
and that is looking at it from solely a football perspective but there are other sports that would warrant consideration when discussing conference affiliations, as well as, longstanding traditional rivalries.
if the NCAA was smart they would just hammer all the cheating *** SEC teams to oblivion and reset the game. If Bama, LSU, A&M, etc all get slammed with big time sanctions the SEC loses its ability to throw its weight around like this.