Hmpf. I had hoped they would do away with threat multipliers on special attacks and let us gain threat by damage. At least that's how I understood GCs comment on the devastate buff.
Apart from "PVP utility" I don't see how we can pose any threat apart from harrassing casters. But then again, I don't PvP on my warrior.
I always thought the best way to deal with a prot warrior is to simply not hit him. No rage, no problem.