The conventional wisdom is SEC Football will not expand in the near future. There are a couple of reasons why the conventional wisdom is credible. One is the SEC is currently happy with its return from media deals. No SEC expansion makes sense until ESPN is ready to ante up once again.
Given how much cord-cutting is believed to have cut into ESPN revenues, ESPN may not be close to throwing more money at college football product.
It was recently written that both the Big Ten and the SEC are interested in adding North Carolina and Virginia.