Despite its extended runtime and in-depth world-building, Denis Villeneuve's Dune only tells half the story of Frank Herbert's original novel, and Dune Part 2 is coming in 2023. The main story of Dune focuses on Paul Atreides, the teenage son of Duke Leto who travels to the desert planet Arrakis, the home of the mystical substance Spice, with his family. Although the Atreides head to Arrakis to reform Spice production and increase prosperity, it soon becomes clear that they have walked into a trap laid by the Padishah Emperor Shaddam Corrino IV and their mortal enemies, the Harkonnens.

https://screenrant.com/dune-part-2-story-cast-updates/