https://www.vice.com/en_us/article/bvgx8m/star-wars-needs-to-get-back-to-its-roots-taking-inspiration-from-other-movies

Most of Star Wars’ core ideas are straight-up stolen from other stories. That’s not an indictment of the franchise by itself, especially considering what George Lucas was able to do with those ideas in the original and prequel trilogies. What it does suggest, however, is that Disney should have looked outside the franchise for ideas for its new trilogy rather than having relied so heavily on Star Wars nostalgia.

Take Dune, written by Frank Herbert in the 1960s as the first book in an epic science fiction series. The story is primarily set on a desert planet Arrakis (Tatooine) featuring dew collectors (moisture farms) and dangerous desert tribesmen called Fremen (Tusken Raiders) in an empire ruled by the evil Padishah Emperor (Palpatine). One of his favorite tools are his Sardaukar (Stormtroopers), Imperial troops regularly deployed to crush dissent and spread fear.