Just read the new tooltip on PTR: "temporarily removes all threat from the target for 10 seconds." So essentially we get another tool to troll the tank? I foresee this being abused mightily in LFR.
**EDIT**
Sorry, I misspoke. Yes, I meant Hand of Salvation. And to clarify: I actually mean PTR changes that have happened since the 8th.
Go to the Dev blog update for Nov. 8th.
it reads: "Hand of Salvation has been changed. This ability now removes all of a target's threat for 10 seconds."
So essentially it becomes a bop but the target still attacks (with respect to threat).