I would actually like to see a "Fighter Town" on the large maps, because I fly during night time in the Far East (which is day time in US and Europe). There are about 70 players online... for which the small maps are fine, but the large maps, the players are so dispersed on the map, doing their own thing, it almost feels like it defeats the purpose of a MMOG. For this reason, the Ozkansas map when three countries actually have some bases on the Furball island, things are great! But when on country overruns the Furball island, it is like blowing up an object on some base and not much more. There seems to be an optimal concentration of players, bases, etc. for this game to be enjoyable.
In relation to other arenas, the way I see this game and the like (eg. AirWarrior as it was) is that the Main Area is the life of this game. Whatever we do in the other arenas are an extention of what we do in the MA. The other arenas just gives an added control to some parameters.
I am hoping that "Fighter Town" would provide some basis for the optimal concentration as mentioned before.
Just my two cents.