The guns are getting better and worse at the same time. I could hit a dime from 125 feet with my Tokyo Marui AK47, that was 7 years ago. (Ok, maybe I'm exaggerating but it was accurate!) Now - AEGs are being released 400 fps out of the box but the BBs fly all over the place.
The events could stand to be improved. More vehicles, better props, more pyro, more $$$ invested in making them exciting and realistic. Better locations with roads, indoor/outdoor at the same field, etc.
However, I do think Airsoft's popularity has sort of reached a plateau. Our largest game, at 420+ people was a couple years ago now. We'll see an influx from some of the soldiers returning from deployment who are bored and they want to experience that camaraderie they did in the field. Beyond that, where else can it go? You can't televise it, it's a terrible spectator sport, your audience has no bearing of what's going on or who hit who. You'll never sell out a stadium to a live Airsoft sporting event, again, nobody knows what's going on. Without television or some sort of mass media, there's no incentive for sponsors to support Airsoft hence no reason for sponsors to pay Airsofters a salary to play the game. There will be no professional Airsofters, and I think that's a good thing. It'll always be an underground hobby activity, not a sport.
We need to be concerned about quality vs quantity right now. Both with events and with products.