I would love to see night fighters, both red and blue. Mosquitos, Beaufighters, Ju-88’s and 110’s. Reds go after the night time raids on England. Blues go for Wellingtons and Blennies over France and the Low Countries. We would need some airborne radar, to make it feel real, though. Search lights everywhere, flak going off.
Even “wild sow” flights.
Bombers could spawn in over the Channel, so that people wouldn’t be flying around for hours, waiting for bombers to arrive.
IL2 1946 had something, but it never got to where it should be.
Go fot it.