(((Hugs)))
What I've found is that during times of stress within a family such as this, they tend to revert to behaviors that are habitual from childhood, when they either acted out or behaved in line as a response to familial issues. So if you are concerned that the family will go back to when you were estranged, I doubt it.
The perfect Christmases occur when, in spite of all that life throws at us, we still praise and worship the birth of our Savior.