Just thought I'd let you guys know where I'm up to at this stage:
Right now I'm putting the finishing touches to the next batch of 40+ missions and they should be released before the end of the month. I'm also working on bug fixes, optimizations and smaller improvements to the game/site. In addition I'm going to be adding some music and day/night/weather cycles to inner city in a couple of weeks.
I expect to begin serious work on interiors/barricading in late October or early November.
Not all that exciting, but I thought I'd mention that I've commissioned a new 3D rendered cinematic intro, which I expect to be ready sometime in December.
Some of you were wondering why the beta warning was removed from the login page. I'm not trying to say that the game is finished, because it definitely isn't. I just don't want new players to feel scared that they're going to lose their account at some point, or that they're going to encounter tons of bugs, because that isn't the case. The game is actually very stable at this point.