It's a Great David Lynch movie; but it's a long way away from what a definitive version of 'Dune' for the big screen should be. I'm thinking it should be something along the lines of Jackson's 'The Lord of the Rings' Trilogy where just about all the right beats are present in terms of design, dialogue, editing and so on... There's very little in terms of presentation with those 3 movies that needs amendment.
Lynch's 'Dune' was a more personal movie - like just about all of Lynch's movies (and television). His personal touch is great when it's using completely original content - there's nothing quite like it - but it's the kind of style that's not in tempo when he is relying on well known source material like 'Dune'.
Looking forward to seeing this new version happen.
-Windebieste.