I would be more than willing to donate regularly (or pay for a pre-order if taken on by the official developer) for development of a flyable Lancaster, or possibly a B17. Or any other 4 engined heavy bomber for that matter.
I think a Lancaster would be perfect for this simulation as historically, big formations were not the principle, staggered solitary night time missions were the norm - surely this would benefit from the next gen engine etc. by not requiring large numbers of aircraft to be modeled at once. Of course, the map would need expanding somewhat...
B17s would be good when we have next decades computing power to enable those large tight formation daylight raids.
I will keep dreaming