I still can't stop but think how stretched out the Hobbit films were, for an otherwise short book. That's a sin that stains forever with me. The Lord of the Rings films, do have their own flaws, but they're fairly contained and can be debated as to whether they were good or not. I have so much trouble excusing anything with the Hobbit though.
And I hope we never, ever see anyone tackle The Silmarillion. Simply because, there will be so much improvised fluff in that would-be film, that it'd make the Hobbit films blush.
“The next three movies were going to go into a microbiotic world. There’s this world of creatures that operate differently than we do. I call them the Whills. And the Whills are the ones who actually control the universe. They feed off the Force.”
— George Lucas
Then Darth Maul becomes the new Jabba the Hut. It sounds... Like ideas I guess. Maybe a weird dream he had one night.
Edit: also, now we know that Luke wasn't special after all.
“By the end of the trilogy, Luke would have rebuilt much of the Jedi, and we would have the renewal of the New Republic, with Leia, Senator Organa, becoming the Supreme Chancellor in charge of everything. So she was [the Chosen One].”