Because its release date was pushed back until 2020 and because Kingsman 3 is not even in pre-production yet, we shouldn’t expect the final installment in the trilogy for quite some time. However, Taron has been dropping a few hints about the film since the sequel came out. In an interview with The Hollywood Reporter in 2017, Taron said that they already had the plot for the third installment planned out.
For one thing, he confirmed that we’d be meeting a new villain and that it was unlikely that Samuel L. Jackson, who played the villain in the first film, would make an appearance again. He also said that, although his hope is to see Dwayne Johnson enter the trilogy, he doesn’t believe the villain role he’s aware of is the right fit for him, which may give us a bit of a clue as what the villain is like.