UPDATE: Seeing as its been about 6-7 months from the start of this thread I suggest anyone looking to get in on the discussion read the last couple pages of the thread. A lot has changed from when this began and I will add in a quote from later in the thread to give a quick up on how its looking as of 5/28/14
Personally after seeing the twitter post from Celestalon that the aim of Stance of the Gladiator is to make prot a dps and that vengeance is being changed to only effect active mitigation tank dps will be balanced without vengeance that this is something that could actually happen
When i saw this talent on the blizzcon floor i was excited but unsure how it could work without giving massive increases to account for not having vengeance however now seeing that tank dps should be predictable you could establish a reasonable value to increase it by to make it on par with other dps thus allowing this to be a possibility.
Just excited over the prospect of being able to finally play my warrior how I originally intended when i first made him in vanilla, what do you guys think?