Well after dealing some of the criticisms I've received in the past this one I hope doesn't get much, anyway I believe that MK deserves an even better roller coaster so I say it should be based on The Night on Bald Mountain segment from Fantasia. The ride would replace the Tomorrowland Indy Speedway Ride.
Anyway my idea for the ride would be imagine The Matterhorn but with Night On Bald Mountain setting, but it's thrilling like Everest though without the backwards parts. As for the ride itself, imagine colors representing spirits on ride vehicles during the nighttime and a 20 foot Chernabog standing tall on top of the 160 foot mountain. But during the daytime it's more of a peaceful Ana Maria style setting as Chernabog is asleep. Now for the ride system it will utilize the same ride system as Screamin' & Rockin' Roller Coaster.
More to come soon so feel free to comment and or share ideas.