This is VERY encouraging.
Glad to know an RPS isn't out of the question.
And I could see how it could be a great COMPLEMENT to an RPS.
Many of the late war rides actually sort of "trickled" into combat service over a long period...that is, a squadron or two or a few prototypes saw combat, had problems, were withdrawn from service, tinkered with, and turned up in large numbers a REALLY long time after their "first" combat.
I THINK the Typhoon was like this (but not sure) it was around in 1942 a bit? Need to check. But didn't show up in big numbers till later.
One could have such an AC "perked" in 1942 and "unperked" later in the RPS. It certainly would be too dominant for 42.
Same goes for the FW190..if you allow FWs in at the exact FIRST moment the first one saw combat you really get uberplane problems..but if it comes in the RPS perked at a high cost, then get the cost reduced, then unperk it when it has some respectable competition, life is better.
However, I really hate the proliferation of arenas concept. I really like the one big community MA, and then special events otherwise. I find a bunch of different arenas in different time periods or with different settings really distasteful...and you run the risk of having a bunch of arenas where you can't really have much of a fight.