It sure appears that the 9 game league schedule may get voted down.
https://www.cbssports.com/college-football/news/examining-the-secs-eight-or-nine-game-conference-schedule-conundrum-entering-this-weeks-spring-meetings/
Teams do not want to lose the extra home league game every other year. That means schools lose a lot of money in losing that game.
The ESPN contract does not automatically increase because you play an extra SEC league game.