A blue post in the official technical support forum seems to suggest that patch 3.3 isn't scheduled to launch for at least another month. In response to a player complaining about how long it takes to complete the 448MB background download, Datth said, "We only provide mirror links for full client patches. Background downloads do not count. You have around 1+ month to download this file so we're not really worried about your speed."

This comment certainly shouldn't be taken as any sort of official confirmation of the 3.3 launch window. After all, Datth could have just been talking about the timetable for background downloads in general. Regardless, it's just something to think about while we all wait for 3.3 to hit the live servers on one of these upcoming Tuesdays.