Little known fact (and I probably shouldn't share it....)
Last year they put in temporary restrooms at the America Pavilion. They were on the "access" road in between America and Japan (It looks like you are going back stage but there were signs back there directing you.)
I would see HUGE lines for the bathrooms in the America pavilion, but no one in the "temporary" restrooms (they were not porta potties, they were in big trailers) They had signs but I guess folks can't (or won't) read LOL!
Don't know if they will have them this year, but it's worth paying attention and looking!
Now I generally just skip weekends. This year on Saturday I will spend the day by the pool at BCV prior to heading into Epcot for PFTS.... So the only time I have to deal with the crowds is the short walk from IG to PFTS (and I leave during Illuminations which is a breeze!)