With great respect, I disagree with this plan! Not in terms of theme (because I think a DreamWorks catch-all area would be fine), but in terms of scope and ambition.
Perhaps it's because we know what Universal originally intended to fit into that plot, but I think anything less than a couple of new dark rides (or a dark ride and a highly-themed family coaster) would constitute a continued waste of valuable space.
I agree, but I like to be realistic. It just makes sense to do something "cheap" right now to keep USF relevant for children, and then plan on having something big for Simpsons in the future for everyone else.