I'll admit it's been ages since I've used the bear spells as their original implementation was very 'meh' at best. That being said after messing around with the new abilities and changes, I like most of them.

Save one Enhancement change. Savage Roar is clearly supposed to replace the current Reaving Roar. And I honestly think it's a good change. That is until I actually cast Roar and saw what the spell does. 50% hate gen is fine if you're tanking. It's even fine if it was a temporary buff when you're trying to DPS. But at 20 minutes duration I'd never want to try and use Savage Roar when I know I'm about to increase my aggro by a noticeable amount as a bear DPS.

Is there any way we could get Savage Roar changed to either function like Reaving Roar in a manner of speaking? I'd prefer that once you get three stacks of Killer Instincts it could automatically proc the Roar. This way the same mechanical idea plays the same without punishing bears that aren't trying to be hate tanks.

If that's too much, might I suggest making a secondary version of the defensive stance in the tree that is instead focused for DPS bears/bearbarians, let the secondary stance prevent any form of hate gen effects from druid spells/abilities.