As of my last knowledge update in January 2022, Mark Harmon’s future on “NCIS” remains uncertain. Reports have indicated that Harmon, who has portrayed Leroy Jethro Gibbs since the show’s inception, has been engaged in contract negotiations.
Discussions have revolved around whether these negotiations might lead to Harmon’s continued involvement in the series or if they indicate Gibbs’ potential final farewell. The outcome remains undisclosed, and details about the negotiations, as well as the direction of Gibbs’ character in future seasons, are not publicly known.
Considering the dynamic nature of contract negotiations and the ever-changing landscape of television series, it is advisable to consult more recent sources for updates on Mark Harmon’s status on “NCIS” and the fate of Leroy Jethro Gibbs in the ongoing storyline.