For those that don't know me, the following are just my thoughts and contributions to the topic. They are not demands issued to HTC with the business end of a credit card pointed at them.
I love EW. These are just my personal thoughts on making it better. You may agree or disagree and it won't bother me.
Anyway.
Without the success of the EW arena, there would be no reason for HTC to even consider expanding the EW part of the planeset as listed above.
Those aircraft would see little if any use in the old MA. Those aircraft would be a clear waste of resources.
Now that we have an EW there might be incentive for working on this part of the planeset.
It's possible/probable the dividing lines between EW/MW/LW will see some tweaking. Date of service is just one possible determinant. Performance (climb/top speed) is another way to sort them into reasonably competitive groups.
The P-38G (11/42) and the Fw-190-A5 (6/43) are not good fits in our present EW. Their performance clearly outclasses, by a large amount, almost every other plane in the EW planeset.
They are used primarily as energy (B&Z) fighters there and like it or not most people that enjoy the EW planeset are probably turnfighters. In short, these planes are used primarily to cherry pick the kind of fights that most people come to the EW to find. Both of these aircraft are much better fits with the MW planeset.
The Hurri II OTOH fits right into the planeset by performance standards. It's merely a competitive airframe amongst many. It's the guns that set it apart; it has become the La-7 of the EW, used by those that just want to blow through with guns blazing. I'd simply perk it pretty steeply and leave it in. (As an aside, wouldn't bother me in the least if all perks were reset to zero since we are hopefully starting an entirely new version of AH playstyle.)
As for the others mentioned:
C-202 (11/41) Leave it. Good airframe balanced by weak guns; it fits.
Bf-109F-4 (6/41) Leave it. Another good airframe, average guns and it clearly fits the timeframe of some of the most interesting (to EW fans) air battles of the war.
Spitfire IX (7/42) This is another one on the line, leaning MW. It's performance is better than most of the rest and it has very good armament for the time period. I'd probably perk it pretty high and see how that worked first. If it became unbalancing, I think it could be moved to MW without much problem.
In summation, yeah, the EW could use more EW aircraft. It seems obvious to me though that unless there is demand it would be a waste for HTC to spend the time to make them. The EW arena provides the necessary demand IF it remains a popular arena.
I think it's undeniable that most go to the EW to turnfight. As a result, I'd move the energy fighters to the MW. Clearly, the P-38G and Fw-190A5 are being used that way in the EW; move 'em out.
To control the HO-only crowd, I'd perk the Hurri IIC pretty heavily. Because the Spit V, vis-a-vis the rest of the EW planeset, borders on an energy fighter by performance I'd perk it lightly.
Just my thoughts. Feel free to disagree.