Probably not much of a deep-SF/F fan, so not many franchises to choose from which haven't been done in some form already. But I'd still like to see new/better movie (or more likely TV) versions of:
Asimov Robots/Baley
Dune
League of Extraordinary Gentlemen (esp)
LoEG is getting a new movie.
). I did like the changes I do remember in CoD, though. Having Leto and his sister be older was good, I don't think hiring age appropriate kids (I think they're maybe 9-12 in the book?) would have worked better, and James McAvoy was great.