We were at Epcot on NYE. We didn't hit the park up at opening (8:00 am), but decided to get there for World Showcase opening at 9:30. World Showcase was fairly empty until around 11am, and was nuts by 12:30 when we headed to our lunch reservation at Le Cellier. After lunch we had Soarin and Test Track FP+ scheduled. Moving about the park was an adventure! We saw the wait times on the
MDE app, but I had a hard time believing people would wait 3.5 to 4 hours for any ride....but they were. Madness! After riding TT we decided to take the long way around World Showcase to the International Gateway (had a flight to catch) and the masses of people were a sight to behold. There were taped off seating areas all around the World Showcase, and they were all packed. Lines for the bathrooms were looooong. Booze flowing every. The scary thing is, all those people staking out viewing locations around the World Showcase at 5pm probably weren't going anywhere, other than to get another drink, until after the midnight fireworks.
As someone who was there I can tell you there were fireworks at 6:30 and after those a lot of people did clear out or move at least for a little bit.
I can't imagine how that could be any fun, especially if you were there with kids. It sure was interesting to see.