Things in AH changelogs that were requested in the wish list forum:
EDIT: These are just the ones I remember reading about on the forums, things folks wanted changed and they were changed eventually. There may be more I don't remember reading about.
2.16:
P-47M
change in damage to prevent spraying a wing-less plane to steal the kill
change in duration of fireballs, to stop zekes from furballing 5 mins after they were "killed"
2.15 P1:
Il2 37mm unsynched (not that it does much IMO)
2.15:
Redesigned game to quadruple number of weapon and damage items for future expansion. (folks wanted more weapons in wishlists, but HTC is capped, so they changed the game so that cap no longer limits them!)
Added new weapon shapes and slightly altered the layout of weapons in the hangar loadout selection.
5" proximity shells no longer airburst over LVT's and PT boats.
2.14 (all patches):
Self shadows
Updated terrain
Revamped shorelines
New detail setting, 4 miles (previously 3 was max)
FSAA now handled through AH settings
Changed arena configuration to allow more airplanes to be seen with high detail updates.
Rapid use of the enter key while typing into the text radio no longer results in premature ejection.
Changed port object to remove the sea wall.
2.13:
Option to auto-record all sorties
Option to name each film as you stop recording
Added 37mm option to IL2
2.12:
Added offline training and practice A.I. mission capability.
Added an additional ammo loadout to the late model Bf 109s armed with 20mm.
2.11:
Redid some of the FM handling on mossie
Redid some damage modeling on mossie (no more zippos!)
Plane performance charts in the hangar now display the weight the performance is valid at.
New camera system inside film viewer
2.10 P2:
Repositioned the layout of hangars at vehicle bases.
2.10:
Added a .r (reply to PM) command
Added beach transitions
Gun shake now works when gunning from a drone bomber.
Changed the LOD range on some objects so they could be visible for high altitude bombing.
Added way to test preview squad art offline
2.09 P5:
Added weight and rate of climb information to the E6B.
2.09 P3:
Made a change to the field order capture system to allow for multiple paths. This
will continue to be play tested in the Orange arena.
2.09:
Added a new chat lobby option at the arena selection menu. This enables you to chat with
other players in the lobby prior to entering an arena.
Added a new Trim Set function.
Can fly RV8 offline
Added more manual and automatic AA guns to the airfields.
Added more barracks to the airfields.
And that's just the change logs I have available since my last full install!!!
Now, HTC may or may not have had these ideas on thier to-do list already, but many of them did have comments from the community (in some way ot another) on the wishlist forum!
EDIT: Oh, and let's not forget widescreen support in there somewhere....