I know it is difficult, but your attendees are also experiencing the stress and agitation of trying to attend umpteen different holiday celebrations, with the various hosts making them feel guilty/obligated. Maybe consider letting them off the hook and giving them one less event to have to coordinate. Instead, consider hosting a party for 2025 the weekend of Jan 3-4. Hopefully you can get most everyone there.
This is a great idea, but we have people coming in from lots of different places visiting people in multiple states.
You could improve the odds by polling people about potential dates ahead of time, and then just choose the one that the most people indicate works for them.
There only is need for polling in trying to coordinate something as an alternative the week before or the week after (which gets bogged down by work, travel arrangements, people having other plans or holiday parties, etc.). The biggest issue is that Xmas Eve is spent with their SO's family and Xmas day is with their other parent's family (ie, our exes) every year and they won't budge. I get that people have to be flexible, but all the other get togethers are locked in and etched in stone. The way we did it when the kids were younger is we alternated years . . . but that fell off once they were out of the house.
Maybe you and the Mrs. and anybody else connected to you should go a little vacation and
enjoy your time not stressing about anybody else. Dine out, pamper yourselves and just send the message that you're done being 3rd or 4th fiddle.
My wife and I did similar. Too many places to go, too many people who have expectations about the pecking order/etc. About ten years ago, we decided it was time for us to enjoy the holidays instead of doing a "my family / your family" tour.
We bascially said "we're going to start our own traditions". For us that meant springing for our favorite expensive wine / hot tub xmas eve, and then exchanging gifts and cooking a nice meal together xmas day. Yes, we're alone (no kids), and it's glorious. My family all got on board - my brother hosts a stress-free "if you can make it" post-holiday get-together mid-to-late January.
And please, those of you with adult kids - do not put any pressure on them. If it means they don't get to your house, then that's what it means. Don't be insulted - let them enjoy their holidays instead of figuring out the logistics of a rushed, box-checking appearance.