Karnak,
That's what I hope for, more early-war aircraft and an emphasis on them in the CT.
If the SpitIX is a 1942 aircraft, then it must've been a monster! If you mean the SpitV, then that seems more reasonable to me but I'm no WW2 historian.
Yes, the P51 gets ranked #3 in total useage but that's because it's a very famous plane. I'd never heard of the LA7 or N1K before this game. However, most dogfights are below 10,000 feet and if you count the number of planes used at that altitude, the P51's ranking would slip. I've been flying around with icons set to plane-type recently for the specific purpose of making mental notes of what I'm seeing, and the P51 just doesn't strike me as being #3 on the list. However, I don't fear the P51 when flying my F4U, P51B or F6F. I don't think anyone gets all that nervous when encountering a P51, the only problem is that you might not be able to catch him if he chooses to disengage to the consternation of Spits and N1Ks (though if he's bled any speed at low level, he will not escape an LA7.)
If the F4F, P40 and other early-war aircraft are introduced, I'd certainly love to get to fly them more than on the occasional weekend during a Special Event.