I'd retire and commission an entirely new WW2 combat aircraft mmo, that used all the latest software innovations created in the last 10 years.
I 'd follow much of what HiTech's done for gameplay fun, but aircraft, gv and bullet physics would be as realistic as possible.
There would be a major emphasis on realtime gameplay techniques. The game server would be monitored by the latest in AI technology, there would be no hacks or cheats. Just pure war simulation gameplay.
Off to buy that lottery ticket.