The Oleg Maddox On IL-2 Interview on IncGamers talks with the designer about IL-2 1946, IL-2: Birds of Prey, and other flight simulators from Maddox Games. Along the way he reveals they are working on an unannounced series based on the Battle of Britain:

There are not many people in the team, but every one of them is very talented. Often we will work very late into night. Right now we are working full steam on a new simulator series, and the opening release will be dedicated to the Battle of Britain in 1940. The guys are using state-of-the-art technologies to achieve the highest realism possible starting with the visual side and ending up with a real feeling of flight. We are developing the engine with an eye to the future. It will be capable of much more than will appear in the first release of the series. And you will see this gradual development coinciding with the improvement of PC performance and capabilities.