I'd argue that Bourne will be the best thing for USF, need wise. A big, impressive, people eating show is more important for that park than anything.
After that, something needs to be done from FFL to Kidzone. It's an area of the park I rarely step foot in any more unless I'm going to do MIB or eat at FFB.
Because, whether people like to hear it around here or not, most guests don't really care about the "screenz" stuff. Shrek is popular with guests. They really like it. They also really like Fallon, Transformers, and Gringotts.
I sorta agree and disagree with your last comment. Sure, guests are fine with screenz, but they also want a balance between practical and visual effects. It makes the experience so much better to have both.