Jefferson White's character, Jimmy Hurdstram, may not return to Yellowstone Ranch due to the show's ending. Jimmy was a fan favorite and served as an audience surrogate to learn about ranch life. By the end of season 4, he left Yellowstone for the famous 6666 ranch with his fiancée Emily. His exit set up a solo spinoff series, where he becomes a lead character. With the news of Kevin Costner leaving the show, it's unlikely Jimmy will return to Montana. The ending of Yellowstone makes his exit permanent, and 6666 is now the best future for the character in the expanding franchise.