We lost Auburn-Tennessee and Florida-Auburn among others when the SEC went to divisions with the expansion of Ark and SC. I stated some losses occurred with the initial expansion.
Its pretty common knowledge for most prudent people that, unless a miracle happens and ABC/ESPN agrees to pay more money for something they already own, (it has been disclosed this week CBS refused to pay more for the SEC package with the addition of A&M and mizzou) the SEC will stay at 8 games. If that goes to 1-7 like most believe after 2024, Alabama-LSU, Alabama-Tennessee, Auburn-Ga, Florida-LSU will go away. This week both Saban and Kelly addressed that this game may not occur every year after next year. Saban said the same thing week of the Tennessee-Alabama game.
I just believe the SEC expansion up until Texas and OU appears to have done more the the schools brought in than it has for the original league members. We'll see what occurs with these two coming in.