Honor's Code has a good write up already about it already and other changes with Vindication and Ardent Defender. Its worth your time to hop over to his awesome blog and read his piece on it if you haven't already being familiar with the changes or discussions over on the Maintankadin forum boards about it as well.
I'm a bit busy leveling my Shaman. I'm half way to lvl 68. So not as much time spent writing stuff.