With a more minimalist, mid century aesthetic, the mural could remain with no issue. The issue I have with the Incredibles is how tied it is to a genre. I equate the Contemporary in some ways with the Disneyland Hotel. There is an element of a retro timelessness to it. It is, at the same time, dated, a call back and modern at once. The Contemporary could easily have the same. A modern reinterpretation of a retro style. (vs. the very modern pop-art feeling that harkened back to the late 90s and early 2000s.) While the Incredibles don't have a time period either, I don't find them nearly as timeless. I would use the Fab Five before I would use Incredibles. Or, I would theme it to the vintage WDW (i.e. MK) attraction poster styles and the Monorail. I think it would have longer-standing legs than a specific Pixar IP.