In what might come as sad Jack Ryan season 5 news for fans of the Tom Clancy series, the Prime Video adaptation won't be continuing after season 4 — at least not for Jack Ryan himself. John Krasinski brought Jack Ryan to the small screen for the first time with this Prime Video series after four different actors played the CIA operative in the movies. However, unlike the movies, which were based on Clancy novels, Tom Clancy's Jack Ryan took the character, and other fan favorites from the novels, and dropped them into new stories. After the fourth season Jack Ryan concludes, and there are no plans to keep the series going, although that doesn't mean the story will end there.
https://screenrant.com/jack-ryan-season-5-not-happening-franchise-future-everything-we-know/