I'm cautiously excited for it. I didn't like Blade Runner 2049, but a lot of that was because I didn't think it a sequel was needed 35 years later. Okay, that and Jared Leto.
The cast really is fantastic. The first movie had a great cast, but never really spent enough time on the characters other than Paul Atreides for it to matter. Don't get me wrong, I love that movie, flaws and all.
I think Jared Leto is treading Johnny Depp level of annoying, I cant put my finger on it but he just does.
Having "read" Dune, (I'll get to that in a minute), I think its a hard book to translate to a movie in my opinion. Too long for a single movie but not long enough for two.