The game makers are gpg, for all intensive purposes right now it's being ignored while they work on their next big release game.
Nobody here can say accuratlely wether or not there will be more support from them in the future, small bug fixes maybe, but major patches and even the promise of the sdk now seem unlikely.
As a kiwi who used to play this game a lot, i've given up on it online now as it's just much easier to get a game going with mates over hamachi than it is getting kicked from, or waiting hours in lobbies due to my high pings. Some advice though is to look out for US West based games, I can connect there with pings of around 180 and even though some say it's too high, anything under 350 seems to be ok so long as your upload is sufficient.
Good luck finding games, and failing that, the liscence allows you to play your copy amongst multiple computers at lans, just be sure to try get them to buy it if it's popular and who knows, maybe oneday the player base will increase.
