Now that we have official patch notes for patch 3.1, I thought I'd take a look and see what changed between the last PTR notes and today. And the answer is: not much. Only eight new/changed lines, and nothing that I'd call major. But you may disagree, dear reader, and so I'll list everything I found right here.
- [Hunter] Roar of Sacrifice can be used on the hunter only
- [Shaman] Unleashed Rage: Reduced to 3 points, down from 5. No longer increases agility, but instead increases your total expertise by 3/6/9. [was 3/6/9%, though that was probably a typo]
- [Warlock] Drain Soul: Each time Drain Soul deals damage to a target which can grant experience, it now has a chance to generate a Soul Shard