The ‘prophecy’ from “1883” will have the Dutton Ranch returning to Native American ownership. I imagine that’s where they might close the show unless the sequel will take place on the same ranch with a different star.
In which case why do a sequel? Just keep making the show but without Kevin Costner.
The sequel gets them out of their deal with Peacock. They’d sold the streaming rights to Yellowstone to them before they made their own streaming service. Now they’ve got their own. But Peacock still owns Yellowstone. End the show, end the problem.