1923 is a new television series featuring Harrison Ford and Helen Mirren as Jacob and Cara Dutton, the brother and sister-in-law of the main character James Dutton. The show takes place after the Yellowstone ranch has already been established and the Duttons find themselves facing numerous enemies. Set in the aftermath of World War I, during the Prohibition era, and the beginning of the Great Depression, the Duttons must navigate these challenging times. However, like their predecessors, they are determined to protect their land and family.

Another upcoming project is 6666, a series currently in development at the Paramount Network.

This show is based on the real 6666 ranch, which was purchased by creator Taylor Sheridan in 2020. Although the exact plot is unknown, rumors suggest it will focus on Jimmy, a troubled rancher from Yellowstone. With this series, Sheridan aims to showcase the vast expanse of the 266,000-acre 6666 ranch. But the spin-offs don't stop there. Sheridan is also busy producing a second season of 1923, which is currently in negotiations. Additionally, there are discussions for two more spin-offs. One would explore the Dutton family in the 1940s, while the other would delve into their dynasty during the 1960s.

These projects not only continue the Yellowstone universe but also serve as opportunities for Sheridan to display his ambitious storytelling and the expansive 6666 ranch. In conclusion, 1923 and 6666 are two highly anticipated television shows within the Yellowstone universe. While 1923 focuses on the Dutton family in the early 20th century, 6666 revolves around the mysterious 6666 ranch. With multiple spin-offs in the works, Taylor Sheridan's creative vision and the vast landscapes of these ranches are set to captivate audiences in the coming years.