The latest goodies and PTR build changes are up on Wowhead, and there are some very fine things there indeed. My personal favorite? The new achievement from the Proving Grounds: You're Doing It Wrong. You earn this achievement for successfully completing a Silver level proving grounds trial while in a spec not meant for it. I'm already planning my Balance druid spec for the healing challenge, just you all wait.
Other important items of note include the ongoing discussion surrounding the nerfs to Mana Tea for Mistweaver monks, as well as the Frost mage mechanic Mastery: Icicles. These threads are very much of interest to those who play the classes involved, and if you have missed some of the news on these topics it is certainly worth getting up to speed. There are also further notes on class changes and tweaks, the most extensive of which are occurring to monks, as well as a whole host of new vanity items, trinkets, consumables, and pets presumably related to the Timeless Isle.