Paul Atreides is the new leader of the fremens as ''Usul'' after killing Jamis. Chani told Paul Atreides that she would love him as long as he didn't change, but Paul did change and their love relationship between Paul and Chani, was different than it was at first. Paul's mother ,Lady Jessica, is the new Reverend Mother and a strong woman in Arrakis

After Paul mobilized the Fremen in an all-out assault against the Harkonnen and Sardaukar forces, Paul also chose to begin his holy war, and demanded the right to marry Emperor's daugther, Princess Irulan, (after) if he kills his cousin Feyd-Rautha Harkonnen in a duel battle.

As was part of his plan to become Emperor Paul also declares he will wed Irulan to solidify his rule, which served as the final straw.

Paul Atreides is making a new plan and getting ready with Naib Stilgar in the Sietche with lots of other Fremens, about how to go to Emperor and his daugther, Princess Irulan, in South of Arrakis.

I can get all of you to the Green Paradise once im the Emperor, but we need a plan. Paul said