Amazing that even after 4 years some people just can't grasp the idea of World War Two...high school history must have been skipped.
Again this is not a WW2 Game , but a game that has WW2 planes,and WW1 planes as well mind you. And the Main Arenas have absolutely nothing to do with historical authenticity.
If you read the first page, its well implied that these planes didn't participate during WW2 as their technology was "borrowed" from Me262s and other German projects after the war refined and improved, etc.
Just make a smaller arena 50 max players all aircraft from WW1 to Korean Era.
Perk the latter heavily, 3 times as much as the 262s. On a trial basis if it doesn't have a commendable amount of participants just scratch it completely.
What do I know I'm sure there are droves of people around the world wanting to participate in an online air war type massive multiplayer game as it has a large market share ,why would anyone want to expand the user base, right?