While we are working the wish lists, here are a few early war birds I’d like to see:
Fokker D.XXI
Reggiane Re.2002
Fiat G.50
Dewoitine D.520
Morane-Saulnier M.S. 406
Nakajima Ki-43
Nakajima Ki-27
Yes, EW birds are hangar queens. Probably not worth the time to model when weighed against the amount of flight time these would get outside scenarios.
An interesting footnote is how many of the above were flown by the Finnish AF:
Fokker D.XXI
Fiat G.50
Morane-Saulnier M.S. 406
How did those guys get parts?
More in line with the OP, here are a few variants I’d like to see:
Ju-87G (?) with the big anti tank cannons
F2A (Brewster 139)
A-26