When they said they wanted to get patches out faster, they appear not to have been kidding, because patch 5.1 is already slated to head for the PTR soon. And it looks like it's going to be chock full of improvements.
- The Brawler's Guild, allowing you to engage in solo PvE content against various difficult monsters, similar to the Proving Grounds concept from a while ago.
- The ability to upgrade the rarity of pets in the pet battle system via an as yet undisclosed method.
- Wrathion's legendary questline will advance.
- You'll be able to spend valor points to upgrade items.
The complete text of the announcement is behind the break.