Valve today have announced the next class update coming to Team Fortress 2 will focus on the Sniper, via the game's blog.
"The next class pack will focus on the Sniper," said Valve's Greg Cherlin. "It's actually shaping up to be the largest TF2 update yet, with multiple new maps and a bunch of gameplay tweaks. ... In addition, we've got another update in the works that should be done before the Sniper, and that one will include some new content for all classes."
The Xbox 360 update is in development and Valve has detailed the reason about the ongoing delay, citing memory limits as the cause.
"The original version of TF2 in the Orange Box was very close to the XBox's memory limit, and all the additional TF2 content we've produced has pushed well beyond it. We've found a couple of nifty ways to get back a bunch of that memory, but it's turned out to be a lot of work, and that's what most of our time is being spent on," Cherlin added.
In the mean time however, Valve will be releasing an update to the game which will address the serving cheating.
Since Team Fortress 2 released as part of The Orange Box in October 2007, Valve have continuously released updates and class updates for the game for free, as is their tradition. So far the Medic, Pyro, Heavy and Scout have all received class updates which include alternative weapons and achievements.