I forgot to mention that the new Repentance is very useful, especially when tanking as Retribution.
It gives you a ranged pull that's also Crowd Control. It's like sheep-pulling, only the mobs run towards the tank instead of the mage.
I'm so used to Repentance being mediocre in PvE that I didn't even have it on my bar and was just body-pulling. Then there was a pull where I could not get close, and I remembered Repentance had been changed, so I pulled it out and it worked beautifully. I used it a lot for the rest of the instance.