respectfully, I vote to have HTC keep their focus on WWII. If they do anything to expand the time line, I'd like to see the PRE-EARLY war stuff make an appearance, as in circa 1936-1939.
The Soviet I-15 (bi-wing I-16), the Polish PZL P.11, the Japanese Ki-43 "Oscar", early 109's, Hurricanes, "real" Brewster Buffalos, etc.