Some very good ideas there Kurfurst. Imagine the tension of flying an unarmed photo recon fighter. I hope the engine will have suitable viewing range for that.
I once read in the accounts of a Spitfire recon pilot that they were flying high enough to take photos of factories in the Ruhr while still flying over Holland

They used to say "When you flew so high and the outside temperature is so low, a lot of times condensation formed on the canopy and you could barely see outside. At times like that you always had the feeling the air was crawling with Messerschmitts".
Radio navigation equipment would be very nice to have as well and it was not that complicated so it could be modeled at some stage. I'd really like to fly blind bombing night raids with a He111 over London, or mark a target for Lancasters in a Mosquito master bomber later in the war.
Most important thing for me however would be a detailed engine management model. Right now we have aircraft that used manual systems perform fine with minimal management, while others which used sophisticated automatic systems perform better in a manual mode. This effectively penalises aircraft with automatic systems in some cases, due to the way prop pitch is modelled and the nature of the 5min resetting overheat timer before the engine goes dead.
It would be really nice to have varying degrees of engine damage due to poor handling, instead of the all or nothing affair in the IL2 engine. I'm not complaining about IL2, in fact i've bought every single incarnation of the game since day one, but the game engine is getting old. If it didn't Oleg wouldn't make BoB on a new engine, he would release it as an IL2 expansion