Players might recall that not long after launch, there was a mass banning in response to a karma exploit. ArenaNet relented, with certain conditions, but warned players that the incident was kind of a community-wide final warning.
In happier news, Game Director Colin Johanson took to the forums a short while ago to talk about upcoming updates. He stated that the January release will be "relatively small" and set the scene for the February and March releases. Additionally, he mentioned that no new races, professions, or regions will be added with the larger releases but that "an expansion's worth of content" was a reference to the number of new features in PvE, WvW, and PvP that will be appearing.
[Thanks to intrepid tipsters Joseph and Adam!]