Who says the theme of the pavilion has to remain the same?I still cannot fathom how people insist that "Inside Out", a movie based on EMOTIONS, will work in the IMAGINATION pavilion.
Figment IS imagination. This is not a stretch, like the "Inside Out" IP would be. It's not as if there isn't already a building at Epcot, mostly unused with the exception of a few festivals during the year, where those characters would fit a million times better.
At this point, they might as well level the building and start from scratch, including the theme.