I guess it would make sense, mostly because a majority of the people that did guest host have day jobs (I can't see Mayim Bialik juggling this and Call Me Kat, plus I think Aaron Rodgers signed a new contract), and although Ken Jennings works for the show as a consultant role he's also one of the chasers on the chase (it's actually more entertaining than one would think)
https://tvline.com/2021/08/04/jeopardy-host-mike-richards-permanent-alex-trebek-replacement/