Initially, Yellowstone fans feared that Kelly Reilly and Luke Grimes, who play Beth and Kayce Dutton, were being written off the show following the season 3 finale bombshell.
The final few moments in the season 3 finale episode, which aired last August, shows all three Dutton's under attack: a bomb exploded in Beth's office, gunmen stormed Kayce's office, and John was shot while helping someone on the side of the road.
In a recent interview on Good Day New York, Kevin addressed the question at hand, admitting that he can't reveal John Dutton's fate: "I can’t say.
Even when Good Housekeeping caught up with Kevin in the midst of Yellowstone season 3, he confirmed that he was ready to get to work on the fourth season.