I've upped some posts concerning this matter before, but I think it's worth trying again.
Who's the big-brain that once said "God is in the details.."

? Anyhow, I really wish we could get nice features that are basically worthless and needless, but would add a lot to immersive fun in AH.
* Folding wings on planes such as the F4F and the F4U
Classic case of "the virtually pointless and needless"... but still, seeing your squaddies land after a mission and neatly pack up besides you with wings folded would gurantee a smile on the pilot's face
* Cockpit lamps
Might have some practical use when AH begins to seriously consider the night-fighters. Besides, in bad weather conditions where the cockpit and the clipboard is dark, it might help.
* Visible leading edge-slats on planes such as 109s or La-5FNs..
A little immersive eye candy for planes that had special features..

* Opening cockpits
Well.. since the fighters don't have any use for the "O" key, what say it be used for opening the cockpits on planes that had the cockpit glasses sliding back?? Maybe a little more merit with view angles, too. Flying in a Spit MK.I in BoB environment would be a lot of fun!
* ammo casings falling off..
I think this can be easily done, without any sort of 3D polygon modelling.. maybe a small sprite visual simular in concept to the explosions?? bullet casings burning out of the wings as guns fire would be cool.. !
* Tinted reticles
If there is any notion concerning improving the sun glare effects in the game.. this should follow up naturally! Fun little toy to tinker with..
* Fire extinguishers in the B-17..
I've heard some bombers like the B-17 had internal extinguishers in the engine.

Maybe there could be varying levels of fire in the buffs..so in some cases extinguishers may be engaged??