All of Orlando is seeing a drop this year, although Disney seems to be hit, by far, the hardest. Price increases compounded with stagnation are the primary causes, but there are also a lot of other negative factors too (like recent events, but they don't have as big an impact as you would think). Brazil, though, that's a different matter.
Disney should have taken advantage of ultra cheap construction costs after the last recession when it could have, now it's a bit too late.
One other factor, special events, which used to help drive people to the parks during slow seasons, are now almost having the opposite factor, the typical summer season is less a draw than the events (particularly Halloween) And Christmas is the worst of both worlds, both event and common vacation time. So I'd expect both of those to be crazy crowded as usual.