I have thought about this often..... I think they should do a moderate resort spread out like Coronado Springs with three distinct sides (much like the Casitas vs. Cabanas vs. Ranchos at CSR or the Mansions vs. Alligator Bayou at POR). Each area would have its own pool, roughly the size of the smaller pools at the All stars (like the Aerial piano pool at the Music and the Goofy pool at the Sports). The main building would have a sit down restaurant, a food court, and a main pool.
One side would be Agrabah from Aladdin, with mosques, etc. The second area would be designed like a Greek Isle, with columned buildings and statues of Hercules and company. The third area would be Indian themed with buildings like the Taj Mahal (ala the Jungle Book). Each area's pool could feature characters from movies, perhaps staues of Aladdin, Jasmine, Genie, Abu, etc. with Genie shooting water at the Middle Eastern area pool. The Jungle book pool could have Balou floating with Mowgli on his tummy in the middle. The Herc pool could have Posiden shooting water out of his trident.
The main pool and building could feature characters from all three movies. The slide at the main pool could certainly have a Mt. Olympus theme with three seperate slides. One would have Herc and Pegasus at the top overlooking the slide, the second would have Aladdin and Jasmine riding carpet at the top overlooking the slide, and the third would have Balou and King Louie "pushing" you into the slide. Characters could be featured on the way down.
The restaurant could feature Middle Eastern, Greek, and Indian food. The food court could be designed like a market place ( similar to Old Port Royale at CBR).
With the popularity of Aladdin, Herc, and now Jungle cubs reviving the Jungle Book characters on Toon Disney and ABC Saturday mornings this resort would be very popular.