Gloster Gladiator
Fiat Cr32 and 42
Sm 79
SM 81
Ju52
Do17
Heinkel 111
Ki-27 Nate
Ki-21 Sally
G4M Betty
Bristol Blenheim
Wellington
Maryland/Baltimore
He 115
Lagg-3
MiGG-3
Il-4
Polikarpov I-16
I-153
Bf109 Spanish War variants
Brewster Buffalo
Dewoitine D.520
With the above planeset you could flesh out an early war arena rather nicely. You'd have about all types needed to get started given that we already have SBDs, F4Fs, Stukas, Vals, A6m2s, etc.
Hk8 Emily
Sunderland
P-39
Ki-43
Ki-45
B-25
B-24
Pe-2
Do-217
Cant 1007 Alcione
These planes saw far too much use/had too great an impact or role in their air forces not to be modeled. Note that for the Sunderland and Emily, these fill the "flying boat/floatplane" needs for axis and allies. Not that I wouldn't take the Catalinas, Herones, etc., just that these two would go a long way towards filling out flying boat needs/uses if not doing so completely. I'd like to see a great many others, and sure vehicle sets would be nice, but let's have more planes first--great planes, the ones that fought the early war when the issue was being decided, not the models that were simply mass fodder to be thrown into each meat grinder.
I see people are also asking for more ships. The Shipping thing needs to be rethought completely, but for now let's have more airplanes.
Sakai