Ok so did this discussion die?
Nobody really want a good historical arena, are you happy with the dweebery of the AvA setup? A half-arsed attempt to create something to please all, which is impossible. Being a historically based game, one would think that the recreation of historical battles and conditions would interest the crowd. HTC took a major step off that route just by going the rook/bish/knit way, which is a godawful mess if you ask me.
Come on, give the RAF and USAF a Bomber Command and pit the Jagdwaffe against them... it would be a main arena on a epic scale.