Hound of UIster wrote:
They had pretty much admitted they had no idea what Herbert had planned. The two thinking machines as the final villains was the best those hacks could do.
I am convinced Frank Herbert intended the thinking machines to be the final villains. The finale Brian Herbert and Kevin J Anderson gave to the series was sloppy, mediocre, and largely forgettable, but it's nowhere near as bad as a lot of the stuff they've done since.
The series is being milked to death. Though to be fair, it was like that when Frank was doing the books. The first, second, and third books all have endings intended to never be continued. He kept returning to his best money maker.