As for my wishes, how about american X-planes like the Vultee XP-54 Swoose Goose and the Curtiss-Wright XP-55 Ascender made for this game!? Would fit all the german 1946 planes!
While NDB navigation you put in is brilliant, how about another kind of radionavigation which was used on the western Front in WW2 called Bernhard Funkfeuer, which is today called VOR.
Still one of my favorite addings to the game would be the possibility to land and refuel/rearm my plane!
Cheers