Devastate no longer provides bonus threat.
Shield Slam: Contribution of attack power reduced to 60%, down from 75%, and base damage brought up so that a level 85 warrior in Heroic dungeon gear deals the same damage with no Vengeance, but Vengeance has less impact. In addition, Shield Slam no longer generates 30% bonus threat from its damage.
Vigilance no longer provides 3% damage reduction, but still refreshes Taunt and provides Vengeance. (so basically this is purely pointless now..even before when they took away the threat)
Cleave damage has been reduced by approximately 17%. (helps with AoE tanking)
Rend base damage has been reduced by approximately 17% and percent of weapon damage per tick lowered to 25%, from 30%. (helps with AoE tanking+spec)