Hershey Park? it is chocolate themed after all?
I feel like you've put just a little bit of thought into this...
and I cant quite tell, did you want a 5th park or no?
5th Park - Disney's Villains and Heroes Adventure Park
Layout: like the Magic Kingdom
Themes: Disney/Pixar villains and heroes; a look back at the past (lost attractions); Disney history
1) Adventure Blvd. (Main St. U.S.A. like entrance)
Attraction 1: A reworking of "One Man's Dream". Much larger than the one at Hollywood Studios. Major collection of park models.
2) Villainsland (location: think Fantasyland at Magic Kingdom)
Attraction 1: Maleficent's Castle - Queue through the castle to board the "Sleeping Beauty" ride, complete with fire breathing dragon.
The castle would be the park's icon.
Attraction 2: Villains Unleashed - dark ride; audio-animatronics of the major Disney/Pixar villains (think "The Great Movie Ride")
Attraction 3: 101 Dalmatians - dark ride (transportation via Cruella Deville's automobile)
Attraction 4: The Emperor's New Groove - part water ride/part dark ride; comedy from Yzma
Attraction 5: The Nightmare Before Christmas - dark ride (think "Haunted Mansion")
3) Yesterdayland (location: think Adventureland at Magic Kingdom)
Attraction 1: Snow White and the Seven Dwarfs - new version dark ride
Attraction 2: Pinocchio - new version dark ride
Attraction 3: Mr. Toad's Wild Ride - new version dark ride
Attraction 4: Alice in Wonderland - new version dark ride
Attraction 5: Carousel of Progress - new version
4) Heroesland (location: think Tomorrowland at Magic Kingdom)
Attraction 1: Heroes To The Rescue - dark ride; audio-animatronics of the major Disney/Pixar heroes (think "The Great Movie Ride")
Attraction 2: Aladdin show
Attraction 3: The Incredibles - part dark ride/part roller coaster
Attraction 4: Brave - dark ride
Attraction 5: Hercules - flat ride/spinner (Pegasus, Pain, Panic)