The series finale of Yellowstone saw Kayce selling the Dutton land to the Broken Rock Reservation to avoid inheritance tax. The show ended with John Dutton's funeral and Beth fulfilling her promise to kill Jamie. The Dutton story will continue with a sequel titled The Madison, featuring Michelle Pfeiffer and others. Additionally, there are plans for a Yellowstone prequel titled 1923 and a spinoff called 6666 in the works, providing fans with more Dutton drama in the future.
Source: https://tasteofcountry.com/what-happens-after-yellowstone-finale/