I remember reading something about a Nightmare Before Christmas ride and I believe it said it'd be in the area where Mickey's Magical Map is now located - but that ride was shelved long ago. I was thinking what if Disney just got rid of that area and made a dark ride out of it? I'm sure fans of the show would hate to see it go though.
An Aladdin dark ride would be amazing addition or maybe a Beauty and the Beast dark ride, but I would prefer Aladdin as it could be extremely fun and there's a lot to work with. I also love the Nightmare Before Christmas ride concept but since we have HMH, its pretty much not going to happen.
Just an idea, I don't know if theres any huge fans of the show so it might not thrill some, but I'd love an additional dark ride in Fantasyland! But Aladdin could also be a thrill ride mixed in a dark ride?