Wow! Been there, done that this last year, only we got into our new house at 10:30 p.m. Christmas eve, and thanks to the massive snowstorm that locked down the northwest last year, our stuff didn't reach us until a week later. Don't know if this will work for you, but here's what I did.
"Santa" brought each child one small (portable, easily hidden in the car) gift on Christmas Day, and wrote both of my kids a letter and explained that they hadn't been forgotten, but because of the move we were going to join our Mexican neighbors in their Christmas tradition. Presents would be arriving on January 6th, Three Kings Day. The old traditional Christmas season is 12 days, from Christmas to Three Kings Day. Since we are Christians, we spent Christmas day more focused on the reason for the season, then moved on to the fluffy stuff. My husband did manage to get a tree up right off the bat, and we decorated it with whatever we could find (and since we'd taken the pressure off ourselves, it was fun, plus we had the advantage of being able to buy the things we didn't make ourselves at a really deep discount). And we left our decorations, such as they were, in place until after the 6th.
Good luck with your move.