Originally Posted by Benedict 
I definitely wouldn't bother with his son's ghostwritten milking of the franchise just in case you were considering it. I didn't mind the other books in the dune series but nothing gets close to the original, what a fantastic novel.
Nope, not considering. While I liked all 6 books and was bothered by the cliffhanger ending, I'm very careful with varying authors. The only such continuation of any stories I've read, which I also happened to enjoy very much, is the Wheel of Time finale.
And incidentally the very final WoT book is coming out tomorrow,
A Memory of Light. I'm very tempted and would lay aside all other novels on my list for this one, but alas, only the hardcover version is scheduled for release, the E-Book version gets a 3 or 4 months delay … What a pity!