When I think Disney, I think the idealized version of something. The Magic Kingdom is intended to be the idealized version of each of the 6 lands. Epcot is supposed to represent the idealized version of the future and the countries represented in World Showcase. Animal Kingdom is meant to represent the idealized continents of Africa and Asia.
MGM Studios opened with the attempt of representing Hollywood "not as a place on a map but a state of mind." That screams idealized version to me. Initially this mean a tour of working studios, and because it was a Disney park this meant a focus on animation. Now, liberties can be taken so that the front half of the park represent how we envision Hollywood of the 30s, 40s and 50s. With the introduction of Pixar Place a concept for the back half of the park begun to take place, it just wasn't really completed. I think taking a similar approach to Epcot with two distinct sections is really the way to go. Conceptually the front half remains the golden age of Hollywood while the back half represents idealized versions of various studios, the most obvious being Pixar and Lucas.