Well its not like it would ever happen anyways. Im sure HTC wants to pack in as many people as it can, and if it aint broke dont fix it. Well, it may not be broke, warped a bit, but not so much as they'd risk losing people. But it would be fun to try.
WW2OL had attrition. However they went at it wrong. They attritted the airfileds rather than the player. You'd come on and your bonehead countrymen had depleted the forward bases and it would take a 1/2 hour to get to the front.
If you attritted the player in here, many of us would enjoy because as it is now, we kill a bunch and as we are killing off the 4th guy, the first guy we killed is back for vengence. With attrition we could kill off that 4th guy and the guy who wanted vengence would have to up the next base back giving you time.
That said, theres alot of "those guys" and Im sure they would tire of the flying further because they dont fight as well as others do, and may leave the game out of frustration.
Thats why I dont think it would ever be used. But Ive often asked about using another arena as a test map to try different settings and stuff, and it would be fun just to see how this would be received.
Mainly Id like to see a Plane Factory that produces the mostused planes, P51D,Spit16, and a few others, that if bombed, those planes arent available for a certain amount of time. This would require a large mission sized bombload to destroy.