Well, Gurney DID sing that one raunchy song early in the first book. Gallacian Girls, or something. IIRC, it began with "Gallacian Girls will do it for pearls, the Arakeen for water!". So there was a little in the first book. But considering how dark Dune can get at times, well... a little humor certainly couldn't hurt.
Now, who hopes this movie helps revitalize the Dune video game series? Albeit with a company that isn't EA heading it.