There was also a bit of confusion on the datamined suggestion that Body and Soul is getting a nerf -- GC clarifies that the talent has two ranks, one at 30% and one at 60% movement bonus. That's been the way since we first heard about it -- no change to Body and Soul right now.
That said, remember that all class changes are still not carved in stone until they go on to the live realms. The planned Shadowfiend changes may not ever go through, but clearly GC and Blizzard are trying to make Shadowfiend surivivability much less random than just a chance to not get hit. Until we see just what the HP bonus is, it may still be a nerf, but at least it'll be based on specific rules rather than RNG.