That only happens if the Trump GOP chosen Senate candidates lose, which then gives McConnell the runway to distinguish the traditional Republicans (Mike DeWine, Kemp) from the Trump selected candidates.
Then DeSantis becomes the formidable favorite for 2024.
However, if the GOP wins majority of the Senate (still likely imo), then that means Trump’s candidates have delivered. It also means someone like Josh Hawley could challenge to become Senate Majority Leader.