Rolling plane sets, historical arenas, and elaborate scenarios can be fun, and WarBirds does 'em all along with its main arena.
But somehow, once RPS began, the WB main arena dwindled and virtually died even though many complained about each stage of the RPS, some planes being too dominant at one stage (e.g. 109 early), and other planes being too dominant at another stage (262 late.
I much favor the free-for-all fly-whatever-you-want aspect of the present AH arena. Sometimes it's fun to fly the latest hotrod, and sometimes it's fun to see what you can do with the 202.
However, RPS theoretically would negate the need for perk planes since they would only be available late in the war with other latest foes.
Rolling plane set or not, AH can set another milestone if it is the first WWII simulator to offer the B-29. That and the 262 would truly complete the WWII aircraft spectrum.
Hopefully common sense would prevail and AH participants would strike a reasonable balance of plane types and not just generate B-29 and CHOG raids to level the entire arena. If restraint is not exercised, a B-29 could be perked, maybe even severely, but at least we could experience some now and then.
If AH ever does try an RPS (along with the present main arena), I hope it will be only after every other aspect of AH is honed to perfection. RPS takes a lot of effort, and AH's excellent staff can give us many more thrills in the main arena before getting bogged down in RPS details.