My DS(19) will be staying on base for Thanksgiving, he's at AIT in San Antonio. But Gpa just made his plane reservations home for Christmas yesterday
My oldest DD will spend Thanksgiving with her DH's family in NY and also probably Christmas.
My sister and her DH haven't been home for any holiday in 4-5 years, they are in NY. Her daughter stays in WI, haven't seen her in a few years.
My brother, his wife, and their daughters are supposed to be home every other year. One year we get Thanksgiving, the next Christmas. But that hasn't worked in a few years either. He usually brings the girls down within a few days of Christmas for us to keep until just after the New Year.
As for DH's side, his kids will probably go to thier mother's.
We've never really done Thanksgiving with his side.
Christmas everyone will pretty much show up unless one of the brothers is in jail again.

That happens every few years, but if I recall, his oldest brother just got released again a week or so ago.