If the SEC expands(and they will), I hope they go for the 16 team, 4 division model with a playoff. If we go any other route, we would be mere followers of the other expansions.
In 1992, the SEC ushered in the modern era of football with the creation of the SEC championship game. I think an argument can be made that the exposure and interest this created has attributed to the current success of the SEC.
If the SEC expands, they need to be innovative, just as they were in
1992. A new format and mini playoff would generate plenty of buzz, and leave the other conferences behind the curve again.
Assuming the SEC adds A&M, Oklahoma, Clemson or Va Tech, and Florida State, the divisions could look like this:
Oklahoma, Arkansas, A&M, LSU;
Miss, Miss.St., Alabama, Auburn;
FSU, UF, Vandy, USC;
TN, UGA, Clemson/Va. Tech, KY
Since you only have 3 mandatory divisional games, the traditional rivalries such as UT/Alabama, Vandy, etc... could be preserved. I am not sure a simple addition of teams without a change in format would be that exciting to me. If we do this, we need to go big, just like we did in 1992.