Something we've wanted to explore for a while is the possibility of
an internet-based item editor. We want to get it in a position where anyone on the team can edit items. Then we want to open it up to the public - like TF2 did with hats. Obviously items submitted by the public wouldn't automatically appear in game. We'll be looking through them, you'll be voting on them, we'll be editing and accepting them and making sure it all works.
That's our dream anyway. The website side is really easy. It's getting the items in game that's a bit more involved and might take a couple of weeks.. because a lot of stuff needs replacing. The good news is that it's all crap and needs replacing with a better system, and once we've laid the foundations we'll be able to add new items like it's nothing.