My most pressing concern as pertains to Prot in WoD is that with SoO, 10/10 HC-raiding prots and rets have gotten used to having, effectively, a 1-second GCD and being more-or-less GCD-capped. Blizzard might (although I trust them so very, very little in this regard) manage to make all the secondaries attractive to us in a vacuum and make us "work" per se, but unless they change something about us significantly, it's just going to feel unpleasant to play both prot and ret.
Ideally, I'd like to see them make SoB a passive that only affects ret and prot, have it give us a 1-second GCD baseline, and make Holy Wrath a spammable filler for both specs. That way, we'd still be somewhat bearable to play even without being able to stack haste.
Most likely, of course, is that they do nothing and prot and ret turn into specs where you stand there with your dick swinging in the wind 50% of a fight, auto-attacking the boss with everything on CD, and that this is not fixed until the penultimate tier of the expansion at best.