Where is this top 8 thing coming from, I have seen it nowhere else. But in the end I don't think the SEC will want to do away with the souths oldest rivalry when both want to play it. AU can't survive without GA kids so they 100% want to keep playing UGA.
But even going with top 8 and bottom 8, right now what leads you to believe UK is in 2nd group? Going by recent results the bottom group is State, Mizz, Vandy, USC, Texas, UF, OM Arky, AU, ATM. The ones who have been better are Bama, UGA, LSU, UT looked good last year, OU looked weak last year. If the do somehow end up going with 2 groups I don't see how UK is 2nd level and certainly isn't one of the 8 weakest programs.
For the life of me I don't see how you have ATM or Texas ahead of UK. We are talking current not 20 years ago.