we still have alot to add..and they are busy doing good work......but what if someday they added a research site...like Peenemünde...that has all the cool stuff like the horten, or me 263, or p.1101..etc it would be far enough away from anything on map so as not to be able to be used in game....but it still could be bombed and strafed by enemy......and maybe you could fly and experimental plane then.....though probably unarmed