We flew in about the same time on Christmas Day in 2009. We went to EPCOT and had a 2pm lunch at Rose & Crown. Sat outside and loved every second of our meal!
We then treated ourselves ... well, actually Mom treated us via gift card...to a great later dinner at Il Mulino. Really can't think of a better way to spend Christmas Day!
It was very croweded that week which we planned for. We had either a later breakfast or early lunch at a TS most days and then cut out of the Parks for a Signature dinner. One thing we did not plan for was the cold ... it was freezing! Coming from New York, we expected nice warm weather. Not what we got that year! There were only a couple really nice, warm sunny days.
Not sure if you are staying thru New Year's Eve. But on the 30th we ate at CRT and then watched the special fireworks in the MK. We spent the 31st in EPCOT and had a blast. Had dinner at 6 in the Biergarten. Didn't realize that that was when it would be New Year's in Germany. All the cast members sang, hugged & cried. We were given noisemakers early. It was really a memorable meal.