On another thread someone, I think it may have been 25, posted that this is probably the last holiday for some of us as a "family" in whatever configuration that is right now. And that because of this it will always have a special designation, especially for our kids. They will always look back at this holiday season as the last one, and for that reason we should do our best to make it a positive, upbeat, and happy time. Let them remember the good. Maybe there will be better times down the road, but even if there are this one will always have a special connotation to it.
So... my advice would be do whatever lets you get to that place best. If that means filing and ending the wondering, then do that. If you think filing at this time would create additional drama and H might tear apart the holiday then maybe wait. All in all it's a matter of a few weeks. Considering how long you've been putting up with his crap it isn't giant in the whole scope... though it probably feels that way.
Married 6 together 8 Me:38 W:31 second marriage for both SS12, SD10, S6 Bomb: 9/8/11 (day before our 5 yr ann) W moved out: 2/18/12 D final: 11/12/12 Share S 50/50. Spend as much time as I can with SS & SD