Matthew Vaughn confirmed the third linear entry in the Kingsman film series in 2018. During an interview with Empire, the director explained that the upcoming film would be "the conclusion of the Harry Hart-Eggsy relationship." Empire indicated that the second sequel — which Screen Rant would later confirm is titled Kingsman: The Blue Blood — and a prequel titled The King's Man would be shot back-to-back. Details for both films were kept tightly under wraps, however fans of the series should note that the prequel, set in the early 1900s, will not feature Taron Egerton, who's most notably known for playing Gary "Eggsy" Unwin in the series.
However, Egerton is definitely going to be a part of the The Blue Blood. During a panel at ACE Comic Con Midwest in 2019 (via Comicbook.com), Egerton confirmed the script is in place. "I'm really not allowed to say anything, but there is a script. It's a really neat idea. That plan, at the moment, is what we'd like to do another one, one more time," he said.
Egerton also expressed his feelings about his role and the Kingsman films. "It was the role that kind of started my film career so I'm always going to feel, you know, a great fondness for the part," he said. "I would like to do one more because frankly, I'd like to say goodbye to [Eggsy] in a befitting way and to finish the trilogy."