As everybody has already seen it, ICC will have its own SWP Radiance: Chill of the Throne.
I'm not going to tell if it's good or not for damages taken, every tank (whatever its class) will suffer in the same way.
The concern for us is about the loss of threat from RS.
I've done some simulations taking into account: (for a 2H blood dk)
- dodge and parry
- average damage of swing and RS
- weapon speed
- hit and expertise
- hit speed
- combat length
With all those things taken into account, you have an increase of 56% of threat from swing, a decrease of 40% of threat from RS and a decrease of swing+RS threat of 25%. It's really huge but it's not over.
If you consider that in 3.2.2, swing is about 13% of your total threat and RS is about 29%, the effective result is only a decrease of the total threat of 4.32%. It's not that huge.
Remember that the simulations were made with average values of a 2H blood tank. I can post later the sheet of calculation if you want.