As of now I would love to see them bring back the Blue Fairy and the Circus section. And if they want to be really generous I wouldn't mind seeing them add in the Symphony units from Spectromagic.
Well some on here did say parade route lighting has been installed/updated on the rooftops, onboard float lighting, and strobs have been added to all of the floats for Festival of Fantasy. Nobody seems to want to confirm nor deny this however...
IMO I cant see a major new parade like FOF only having one performance a day.