There were two requests made at the last convention that would help immensely and that HT said even he'd love to have. They've already introduced some of the bigger ones (moving the hangers on GV fields, giving towns real AA guns).
First is a wish for a feature back. Bring back the thick tracers for at least the 8" guns. In AHI you could follow your rounds right until impact. AHII's tracers resemble that of a .50 round.
Then a new but simple feature. A checkbox under "Flight" in the Preferences that will automatically start filming at the beginning of flight when checked. Some expansions to this wish include switching it off for GV use or giving a popup box at the end of flight asking if you wish to keep the film or not.