I am hoping and praying that the Twilight Checkin will be open on Christmas Day but haven't checked yet as my experience of Virgin is that you are never told the same thing twice! I think I will wait 'til nearer the time and hopefully the answer will be more concrete.
As we are travelling down the night before our flight, it would make it so much easier if we could check in that evening, and have a bit of a lie in the following morning, but it is all in the hands of the great VA staff isn't it?
How are you getting on with your planning? Have you booked any meals? I have just booked the Donald Character Breakfast in AK as I believe it is a special Christmas one with Santa Goofy this year. I've also booked meals for New Year's Eve in EPCOT to help us survive the long day!