I know this is a bit early, but I'm having a series of bad days and I wish to think of something fun. Just for fun, I'm going to throw some longshots in.
Here goes:
Spitfire F.Mk.21
HTC will surprise us by giving us the best Spitfire of the war (although not the prettiest; goodbye elliptical wings) as a perk plane. This fighter is to the Spitfire series what the Ta152 is to the Fw190 series.
Il2-M3
The most produced warplane ever and with gobs of loadout options. Great ground attack capability and damage sponge extrordanaire. This is one of the most needed VVS aircraft.
Ki-61 IIb
The late war, cannon version of the IJA's Ki61. It was used with some success to down B-29As. This would be a good aircraft to start the IJA planeset with.
Me410A
This is a unique looking (except for the Me210), versatile German fighter/bomber. It would be a first as no other sim has modeled it.
Tu-2
This would be a great tactical bomber. It is fast, carries a decent bombload and is reasonably defended. It outclasses the B-26A by far.
Ki67
This would give the IJA a fast bomber that would also shine in the tactical sense (if I got the number right). Another bomber that does the same job as the B-26A, but better.
F7F-3N
The first perk plane for the US will be the Navy/Marine's Tigercat. With its thin body and two huge radial engines it is a very interesting aircraft.
A7M2 Reppu
Japan's first perk plane will be Jiro Horikoshi's successor to the A6M as he intended it, with the Mitsubishi engine. With less than 10 production models produced it still manages to qualify as a production fighter in WWII.
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We few, we happy few, we band of brothers;
For he to-day that sheds his blood with me
Shall be my brother
Bring the Spitfire F.MkXIVc to Aces High!!!
Sisu
-Karnak