I played at high levels of PvP throughout WotLK (Dualist multiple times, 100 points away from gladiator in the last season I played)
And I have to say, I actually like the changes to the class. It's more dynamic and fun to play, and adds some much needed abilities to the class . (Rebuke, Long Arm of the Law, etc.)
And although I'm not a huge fan of so much RNG based damage, it doesn't bother me too much.
There are a few things however that make the rotation a little bit clunky.
The way in which holy power is applied, the application of inquisition, and the use of zealotry need to be looked at.
Inquisition is almost unusable in PvP or in short fights, and still clunky in long fights.
IMO Judgement, Auto Attack, Exorcism, and Crusader strike should all guarantee a stack of holy power,
OR Inquisition should work like zealotry and require holy power to use, but not consume it.
Because of the way holy power stacks now, you spend 12 seconds getting your three stacks up for a full duration of Inquisition, and by the time you get a Mastery or AOW proc, or manage to get another 3 stacks for templar's verdict, Inquisition has worn off.
Another idea would be to lower the cooldown of Zealotry to 1 minute. It's a great ability to be sure, but I feel like the reason it's feels so great is because there are some underlying problems to the way holy power is stacked and consumed.
The last idea I have would be to make Exorcism always an instant cast for ret... Without AoW it's already doing less damage, but making it an instant cast would help smooth out the rotation, and give us something to do against kiting classes in PvP.
Sure, long arm of the law helps, but it still takes a while to catch kiting classes and exorcism would give the ability to apply some much needed pressure at range.
Of course I don't think ALL of the above should be implemented... Any single change would help smooth out some of the issues with the class.
anyways... Just tossing around some ideas. I definitely like the changes, but it could still use some small tweaking.