Anyway, was anyone in WDW for New Years? I’ve never been for a NYE and keep going back and forth as to whether that would be a lot of fun or the worst idea of all time.
Catching up on this crazy thread and feel compelled to respond to a weeks old comment...

DH and I spent Dec 30-Jan 4 at WDW. Party of two adults, no kids. It was our first time doing NYE at WDW, and I would call it a cross between a lot of fun and the worst idea of all time. Mostly fun, for sure, but we knew what we were getting ourselves into. Had we not been prepared, we would have had a bad time.
I absolutely loved Fantasy in the Sky at MK (which we saw on 12/30, so we could go to Epcot for NYE), and would honestly book another NYE trip for those alone. But I love fireworks a stupid amount (and cry every. single. time.), so YMMV somewhat. Illuminations with the NYE tag was also very very impressive, but didn't quite take my breath away like Fantasy in the Sky.
As for why it's also kind of the worst idea of all time: The crowds were NO JOKE.
Some tips if you do go: Travel light in the parks; the ability to use "no bag" lines saved us a lot of time/headache. Be prepared with a solid touring plan. Or, don't worry too much about attractions and just take in the atmosphere (that was our strategy, but we're non-local passholders). Book table service lunches to escape the madness and get off your feet (protip: book restaurants that serve a la carte entrees and share; DH and I find that splitting one TS entree and one app or dessert is plenty of food, and costs about the same as 2 QS entrees). If your budget allows, this is a time of year when we find staying onsite to be super valuable. We did a split stay to stretch our $$ - Yacht Club 12/30-1/1 and Pop 1/1-1/4. Just being able to walk back from Epcot on NYE was a priceless experience for me. We also altered our sleep schedules to both take advantage of the long park hours and avoid crowds as much as possible. Each day we rope dropped, did a TS lunch, and then back to the room for a 2-3 hour nap. We'd head back to the parks around dinner time, stay out until 2 or 3 am (with EMH), sleep for a couple of hours, repeat. I realize this won't be practical for all, but we found ourselves marveling at relatively empty parks at 8am or 1am (compared to the crush of 3pm), so it was very worth it to us.
Another thing to be aware of is that the whole atmosphere of the parks feels different. There's random entertainment scattered about, and in the MK that entertainment basically ignores thematic integrity (think: loads of dance parties and DJs). Epcot does a better job with enhancing the theme via the added entertainment. We left AK and HS for post-NYE, so can't comment there. I enjoy experiencing the parks in different ways, so the temporary erosion of theme at MK didn't bother me too much, but DH was often quite irritated. (Ahem, the long-term, sustained erosion of theme at WDW is something we both find upsetting, but outside the scope of this post.)
Bottom line: I would absolutely do NYE at WDW again, but probably not with a group larger than just DH and myself.
I would apologize for the thread derail, but I think that ship sailed a long, long time ago to a galaxy far, far away.