S!
If HTC is going to mostly do variants, then I would suggest the following:
Tempest V (relatively close visual model of Typhoon)
Spitfire I, IIA, IXLF
109E-3, E-4, T
FW190A3, FW190F
JU-88C Nightfighter model
P-51B, P-51H
P-47C, P-47D-23 (both Razorback) P-47M
P-38F, P38J
B-17F (Minus Chin turret)
Yak-9, (Most common Yak-9) Yak-3
La-7
For new aircraft, if they are making only a few, then they should add some Japanese army aircraft, as well as a Japanese Navy Dive Bomber or Torpedo plane. A Mosquito MKVI would also be a good addition to game play as it would give the bomber pilots the ability to come in at high speed and evade any CAP at lower altitude. The Germans need a new Fighter too. 190D, and it should not be perked.
Ki-84, or Ki-43
Jill
190D
Mosquito MkVI