An eclectic mix of things cinematic of the geekier variety,
This looks to be a no win situation. If they stay close to the source material, they'll get a 5 hour snooze-fest with LOTS of dialog and no on-screen action. If they try to make a modern movie out of it, they'll get the Star Wars prequels. The books are a great read if you are looking for "Golden Age" (as in John W. Campbell) science fiction, but it really is un-filmable.