If they would take all this new stuff, add in the other stuff they have shown from 'TOD', bring back the strat system and maps from AH I, get rid of the three arenas and call it AH III they could end up with the best WWII type flight sim around.
NOTE: Okay, if they have a deep desire to keep multi arenas, they could make two (one going from 1939 - 1943, and the other 1941 - 1945). This way there would be a good overlap so that people could fly the older planes yet still have some of the newer stuff at the same time.They would also need to upgrade the servers.
With this idea, and them adding in the AI driven planes from 'TOD', everyone could/would have a chance of fighting both PvP and PvA at any turn. I think it would add a new dimension to the game and keep it a bit fresher.

The 613th could close the front and take the bases. 