There's no way they can do this in movie format and do it any justice. That and the fact that Brian Herbert is involved, who's the same guy producing terrible schlock Dune prequel books for the last fifteen years, is not encouraging.
The 1984 movie was a travesty (fucking Voice amplifiers that shoot people!? GTFO). The 2000 scifi mini-series was better plot wise, but low budget. The right way to do it would be series television, but the budgets would easily spiral out of sight quickly. Not to mention Dune is so ripped off by other stories that it would be difficult for it to stand alone at this point in time, since those other ripoffs have been around for so much longer.
I'm a huge fan of the first Dune book and it's probably one of the best scifi novels ever, if not #1. The 3rd book was good but not great, 4th book was almost too weird to follow, and the 5th book was only passable due to Miles Teg.