-Customisable fuel tank switching timing and order, and if not completely unfeasible, the option to fill certain tanks only, and/or by as small increments as possible.
-The replacement/addition of stall shudder by the plane when nearing stall, instead of the horn.
-The possibility to map two axii to one function, for example if you want the js twist for small rudder movements, and the pedals for large ones.
-Icons something like in WWIIOL, it sounds pretty neat. And the said CM option to turn off icons altogether. And adding planetype+name in the iconmode cycle.
-More ordnance types for the planes that had much more of them than we have, like Pzblitz or SMuzic for the LW, NS-37 for the Il2, etc.
-A larger sun flare corona, the one there is is good, but it'd be better if it had another wider outer glare.
--Map icon+text color added to color setup.
-Tracer shell and and quantity/placement in the chosen ammo belts.
-That promised post-flight .txt statistic summary.
-Perked extra goon loads, they could carry 20 troops, I heard.
-The possibility to brake off parts rather than insta-towering at low speed, you can drag the wingtips and bounce the tail almost as hard as you want <200mph, but >= 200 you suddenly die.
-Hopefully, more gradual damage will affect the FM gradually as well, so that you don't fly perfectly if your strainer-plane is about to fall apart.