Bijaz programs Duncan to offer Paul a bargain when Chani dies: Chani's rebirth as a ghola, and the hope that Duncan Idaho's memories might be reawakened, in return for Paul sacrificing the throne and going into exile. Source: Internet
In the original novel, Chani forms a deep bond with Paul Atreides (Chalamet), which makes one wonder if Zendaya will have a more sizable role in the second film. Source: Internet
Chani, taking matters into her own hands, switches to a traditional Fremen fertility diet, preventing Irulan from being able to tamper with her food, and soon becomes pregnant. Source: Internet
Nearing death from advanced age, a desperate Scytale trades his precious cell samples for permission to grow his own ghola; Duncan and the Bene Gesserit group subsequently grow gholas of Paul, Chani, Jessica, and others. Source: Internet
Scytale offers to revive Chani as a ghola in return for all of Paul's CHOAM holdings. Source: Internet
Later on the recovering planet Dune, the awakened gholas of Paul and Chani have reverted to the ways of the ancient Fremen, resolving to lead simple lives and restore the planet to its former glory. Source: Internet