Luke Grimes publicly teased his interest in having a Yellowstone spinoff with onscreen wife Kelsey Asbille - before his Marshals series hinted at Monica's possible death. The costars discussed Kayce (Grimes) and Monica's (Asbille) future together when Yellowstone came to an end in November 2024 following five seasons. Asbille, 34, remained hopeful about where the fictional couple would end up, telling The Hollywood Reporter, "Oh, [there are] definitely [hurdles]. That's I guess part of marriage, the hurdles. That's just life! But I think they've always been endgame for each other.