many of the major features of patch 3.2 having been announced, and a lot of people already somewhat bored with patch 3.1 content, and with the new dungeon/raid instance being a relatively simple "arena" format, many have been hoping that we'll see a 3.2 PTR soon. However, it looks like we'll have to wait a bit longer than hoped. In a recent post regarding adjustments to Druid set bonuses, Ghostcrawler let slip that a change would be coming "long before 3.2."
While it's possible this could just be slipped in with other hotfixes, it does seem to imply that we can expect another bug fix and minor balance tweaking patch before 3.2 hits the servers. Of course, this is probably good news for those hoping for adjustments and fixes for their class or spec, but for those who just want more new stuff to do: Well, sorry, you may have to make those ulduar trips or Argent Tournament dailies last just a bit longer.