FYI, Ken revealed in the season finale aired on Wednesday that Jeopardy! Masters will be back in 2024.
What Ken says in the episode: "Now before we begin, I have good news for all three of you. By virtue of qualifying for the Jeopardy! Masters final, all three of you are also guaranteed slots in next year's Jeopardy! Masters. But first, we got to figure out who's gonna win this one. We have a little bit of business first."
EDIT: Also around 6:28 in the latest Inside Jeopardy!: "I'm interested, I mean, I'm gonna start the process now that will happen over the next few months, before we move into planning Masters, your return to defend the trophy next year." There's some more talk about the 'next year's' Jeopardy! Masters after that specific quote as well.