Can't Top the Original.
I don't think you can.
I have read the book and I know there's differences but I love the original movie and have watched it countless times. Parts could be a little more slick, but overall, I was such an odd movie with great costumes and acting.
I will watch this thing just for Brad Dourif's weird hand gestures that have nothing to do with his point. I love the pilot and his crew of handlers talking throw translation devices that look like something from the 30s. And, the though that went into them having tubes of spice go directly into their brain.
Also, I didn't think Paul was much of a character in the book. In the film he had a positive quality.
The Harkonnens were great, bizarre, obviously perverted, and I don't know how you can match it.
The negative about doing a movie though is the whole idea that all of these special people are the result of long breeding programs to avoid technology. In addition, I never really got why Paul wanted to bring water to the planet and so forth. It seems like a misty idea and I don't know that audiences care.
The first film was a spectacle of weirdness, which made it great. Not sure that can be reproduced.