We don't know what changes are coming, but WAR won't be changed to be like PLD. I'm not expecting something like Hallowed Ground, Rampart, or Sentinel (thought it could happen). I think they want to keep WAR as a self heal, damage heavy tank so I believe that they may lessen or completely eliminate the damage nerf of Defiance. And change that to a flat heal buff that removes the cost of using Inner Beast while enhancing the efficiency of Bloodbath.

Meh, but we could guess all day. There's at least 7 changes coming.