Ive said this a thousand times. The "economy" is not high on the list for reasons why people leave games. Maybe more so with pay per month games but still, despite the economy, gamers will pay to play their favorite games.
I expected a down turn in the arena after BF4 and COD G came out, plus a few other games. As for those two, and despite their graphical beauty, most of all BF4, I think the coders who wrote the games were riding the rock pipe. Talk about numerous problems!
I think improved graphics will bring players back to AH. Playing these other games reminds me of how well written Aces High actually is. With a new graphics look I'll probably be the first to come back. It would be great to get the old Euro crowd back as well. I can remember when USA morning and afternoon time had the most skilled players on.