With patch 1.10, each class will get a new class armor set they can obtain through dungeon quests. These are based on the current sets that drop in instances such as Blackrock Spire, Stratholme and Scholomance.
On the official WoW website, there is now a new page up where you can select each race, gender and class to see these new armor sets. All stats and bonuses can be inspected as well as the look of these new sets.
To check them out, visit the armor sets page.