I haven't seen the new Dune, but I've heard good things about it and look forward to checking it out.

The original David Lynch version had many flaws, but I liked its art direction (architecture, furnishings, costumes, etc). They visually matched what I had come to expect from reading the novel.

The SyFy channel miniseries was colorful and spectacular and in my opinion a better product all around, but it was a bit of a departure from what I had come to expect from the novel. It was gorgeous, and dramatically superior, but somehow it didn't look quite right. Also, William Hurt, normally one of my favorite actors, seemed to just be phoning in his performance as Duke Leto. OTOH, Ian MacNeice's Baron Harkonnen was a tour de force. He was magnificent.

From what I can see from the previews, this new version appears to set out to correct the problems with its predecessors. I can't wait.