Boy, this is tough. I actually think that Iowa finishing 2-0 and KF being TIED with Woody with 205 wins as a Big Ten coach, and then KF gracefully retiring on a rather high note, coming off a 9-win season and a career win % of >.600, would be the very best thing for everyone. The problem is that I don't want to wait until January to start looking for his replacement. In fact, if he did suddenly decide to retire after the bowl game, it would probably be a situation where BG would give SW the interim tag for a season, and I'm not sure I like that idea.
If KF decides to return in '25 to pass Woody, he certainly would accomplish that, but there's almost a zero chance that he'd win enough games to maintain the .600 win %. 2025 is just going to be a bit of a down season for Iowa, and going 8-5 would actually be a shocker to me.