I'm honestly surprised they didn't announce the end of Vengeance, and I still half expect it to happen.
Vengeance has all sorts of strange consequences - the increased threat after hitting taunt mechanic in this patch was introduced to deal with its impact on taunt swapping,
for example - and I know it's never been a solution that's perfectly addressed the problem it was created to solve, namely that tank threat doesn't scale with gear the same way DPS player's damage does. Well, with hit, expertise, dodge and parry gone, wouldn't tank threat scale just fine with gear?
The potential is at least there for it to do so, since I can't really see much of a difference - we're all going to be wearing strength plate with crit, haste or mastery on it.
What else is there to wear?