I emphatically DON'T want to see him adapt the Enchanted Forest Chronicles. I love Miyazaki. He is a brilliant filmmaker, but he wouldn't do a faithful adaptation of these books. He'd take the basic concept as a jumping-off point for his own creation, and while the movie would probably be great (see: Howl's Moving Castle) it also wouldn't be Enchanted Forest Chronicles (See: Howl's Moving Castle again).

And once he'd done a version of it, no other movie studio would even try, and we would never get a faithful adaptation of the books.