I think it's very encouraging that the development team has taken heed of what the players would like to see. Since the game is already in development and you can't just add things midway without having an engine that supports certain game mechanics, it's safe to assume that they have been listening all this time and planning things in advance.
The new engine management and the modeling of early WW2 electronics that carries potential for a night bombing campaign down the road are the two most anticipated things for me. IL2 is still a very enjoyable sim, but the thing that mostly feels lacking in realism is the way engines and overheat are modeled. I'm certainly very glad it's included in their list of improvements.
I for one am very excited about all the new possibilities. Also, i don't mind waiting an extra month or two for 4.09 as long as BoB keeps going strong.
I'd much rather wait a little more for the new maps and have a video of a working BoB engine, or even things you can't show in screenshots/videos like completed flight models for BoB.
There is only one thing that worries me and that's how much money i will need to spend on a new PC to run this game when it gets released
