A simple solution for the Prot version of Shockwave is simply to leave it as it... and apply the current change (40 sec CD) for the DPS spec Shockwave. This way Arms/Fury still have the option to take the talent for AoE, without having a somewhat OP version of it in single target PvP situations.
Right now, even though the CD is reduced by 20 sec when we hit 3+ targets, as Prot we are still immensely penalized.
Let's say you use a SW on the last two mobs of a pack on CM, to reduce incoming damage, and they die within the next 20 sec; with the current version of the spell (5.1), it would be up for the next pack, and would allow you, not only a better aggro burst to pick it up, but also a nice CC to reduce damage while your healer is still catching up for example.
Having to wait some 20 seconds more then, is simply not justified, and absolutely a bad design.
Shockwave has been an iconic Prot spell for both CC, damage reduction, and AoE threat/damage burst, since WoTLK (4 years now...), and no one has ever complained about it, because in that domain, it has absolutely nothing epic or OP. It's not better than a DK's D&D, or a Pally's Consecration just different, and very often, only allow us to make up for the lack of a ''zone AoE'' effect like those, and still remain good at picking up mobs - even those that are rushing from multiple directions.
There are many situations in which you'd still use your SW to pick up only two mobs... then what ? You have to wait for 40 seconds before you can use it again ? Why should we have this sort of downside now, if it has been working nicely for 4 years, and is still working just fine ?
I agree the state of SW right now for damage dealer Warriors is perhaps not the right one, but sadly that has absolutely nothing to do with Prot... whether we're talking about PvE or PvP.
So obviously, I think this change as it is right now, isn't wise at all. It will indeed solve some of the issues we're seeing in PvP (too much CC's), but will also greatly harm a pretty important ability for Protection Warrior.
Thus, a simple solution as I mentioned, is to make the DPS version of Shockwave different from the Prot version ==> problem solved. This is already the case damage-wise for the two other talents of the tier, so why can't it be done here ?
This also goes for Second Wind of course, since there's absolutely nothing to be complained about in PvE, as many other classes have way more (and stronger) regeneration abilities than that. So again, why are we being penalized by an issue that doesn't even concern us in PvE ? : (
---------- Post added 2012-12-22 at 11:45 AM ----------
PPS : I'm also really wondering why the 10% flat nerf on Shield Barrier ?
If it's too strong, how would a 10% nerf change anything ? And if it isn't too strong, then why nerf it at all ? Is it again because of PvP ? I really hope not.