I think, that HTC made these 3 arenas, early mid and late, as a step towards Combat Tour to prepare gamers for the new game play mentality required.
The community will need to get out of their late war rides since CT will most likely start early war and move onto late war. We will be forced to find satisfaction in the game play, not in mastering just one airplane( It will be hard for me too since i pretty much just fly the p51, p40e, and p38 with any succes)
Its a shame everyone is still clawing at their late war rides/arenas. It seems HTC's best solution is to force players into the earlier arenas with these server limits even tho its possible to have larger ones it would defeat the purpose of what he is trying to do, if im even remotely correct in my assumption. ( I hope this still makes sense to me when im sober).