The article lists six film franchises said to be officially ending, arguing that some are concluding at an appropriate point while others have simply run out of story.

– Dune: Denis Villeneuve’s trilogy is due to conclude in December with Dune: Part Three, adapting Dune Messiah and serving as the planned endpoint of Paul Atreides’ story.
– The first two Dune films established the series as a major modern science-fiction success, combining large-scale spectacle with political, religious and environmental themes.
– Although Frank Herbert’s wider Dune universe contains further material, later books leap centuries ahead and move beyond many established characters; the screen universe is expected to continue through television.