There's still a few possibilities ;
D3A2 "Val"
Ki-100-1b Goshiki-sen (bubble canopy version)
Ki-21-11b "Sally" (dorsal 12.7mm gun position instead of glasshouse)
Ki-43-111
P-40N
P-47N
Mosquito XV111 (with 57mm molins gun)
Beaufighter V1
Can anyone hink of any more?
How about stuff that requires entirely new 3D models like the KI44,B26,HE219(no,the HE219 was never really done-skinners are unable to do much with it because of several problems,but the prototype is still fun)
First thought was Hurri IIc with bomb loadout, because - presumably - it would be relatively simple; aircraft and loadout already exist, they just need putting together. Used a great deal in the Far East even into '45.
To Howlin's good suggestions I'd add Do-17/217.
There's a whole load if you start looking for ac that require building from scratch: Meteor (the allied jet that actually saw service), the other RAF heavies, Sunderland, the other Italian medium bombers and peebles's suggestions would also be at the top of any list.
here are just a few that spring to mind - some may be already WIP , not sure
Aichi B7A Ryusei 'Grace'
Arado Ar68
Arado Ar240
Armstrong-Whitworth Whitley
Avro Manchester
Avro Lancaster [i know this is a wip]
Blackburn Roc
Blackburn Skua
Bloch 174
Bloch MB-152
Boulton-Paul Defiant
Bristol Beaufort
Caproni Ca133
Caproni Ca135
Caproni Ca309 Ghibli
Caproni Ca310 Libeccio
Caproni Ca314
Commonwealth Boomerang
Consolidated Vultee B-32 Dominator
Dewoitine D520
Dornier Do-17 [wip ? ]
Dornier Do-217
Douglas A-26 Invader
Fairey Firefly
Farman F222
Fiat BR20 Cicogna
Focke-Wulf Fw-187 Falke
Focke-Wulf Ta-154
Fokker C.X
Fokker G.1
Gloster Meteor
Grumman F7F Tigercat
Handley-Page Hampden
Heinkel He-51
Heinkel He-100
Heinkel He-112
Heinkel He-177 Greif
Junkers Ju-86
Junkers Ju-188
Junkers Ju-290
Kawasaki Ki-45 Toryu 'Nick'
Kawasaki Ki-48 'Lily'
Kawasaki Ki-102 'Randy'
Lockheed Hudson
Lockheed Ventura
Martin 167 Maryland
Martin 187 Baltimore
Martin B-26 Marauder
Mitsubishi G3M 'Nell'
Mitsubishi Ki-15 'Babs'
Mitsubishi Ki-30 'Ann'
Mitsubishi Ki-67 Hiryu 'Peggy'
Nakajima J1N1 'Irving'
Nakajima Ki-49 Donryu 'Helen'
Northrop P-61 Black Widow
Potex 63 series
PZL P.23 Karas
PZL P.37 Los [ wip ? ]
Short Stirling [ wip ? ]
Vickers Wellesley
Vickers Wellington
Westland Whirlwind
Yokosuka D4Y Susei 'Judy'
Yokosuka P1Y1 Ginga 'Frances'
I think all of these deserve inclusion
Curtis Wright C 46 Commando
Devastator
Helldiver
~S~
As Nyali said above..
especially the Lanc, P-61 Black Widow, B-26 Marauder, Do-(2)17 and Westland Whirlwind if you'd ask me.