If you ask me if I want a new 190D11, Ta152C, submarines, spacecrafts, etc, or just a fine tuning of what we already have (damage model, flight model, gunnery model, graphic effects, etc), I'll choose the second with no doubt.
As an example, there you have the IL2. It was a stunning success after its initial launch even all we knew it had a extremely limited plane set.
IMO, we have a more than acceptable planeset, and again, IMO, improving other sides of the game would be a more efficient marketing move, and damage model is a primary key side of the game.