I didn't really notice a difference between the way night-flying was on Xmas eve, and the way it used to be Megalodon. Planes were basically black holes, I didn't see any of this reflection that lit up planes which you and others mention. I had to crank up gamma to see the actual planes.
That said, I'm not trying to rain on the parade here. However from what I saw the night flying looked no different than it used to years back. And with that I can only suggest the most likely outcome insofar as participation rates are concerned, would be similar to that of years past.