I realize this, and have been on property for NYE the past two years, but it's still a valid point as far as crowd size goes and being aware of what you're getting into.
And whether or not it's been closed or not to onsite guests, last year we had to scan our magic bands at the entrance to the monorail when leaving Epcot to go back to the Polynesian. We were asked where we were going b/c MK was beginning closures, and when we said the Poly/TTC, we had to scan our bands as proof.
I feel that people need to be aware and prepared for anything that may come up - our first NYE (which was a fairly last minute trip) we followed all the advice from previous blogs/vlogs/and other stories of Disboards members who had gone before, and it was all wrong information - it seemed like what actually happened was the exact opposite of what we'd prepared for, so I just want to make sure people have appropriate expectations and can have some kind of idea in their head of what they'll do if things veer off from the plan they thought was going to work.