After a bit of thought, I wouldn't be surprised if Blizzard is going to revamp where rage comes from dramatically.
Looking at anger management and ignite weapon, they are both talents that have the possibility of increasing the value of haste rather significantly if haste became a scarce resource all of a sudden. A few points:
1: Removal of glancing blows is a 15-20% autoattack damage boost. +haste value
2: Anger management seems really overpowered right now because we have so much rage. What if rage granted from non-autoattacks was significantly cut? I'm thinking enrage procs no longer grant rage. This would slightly decrease the value of crit, and increase the value of haste as it leads to more cooldown reduction that isn't so heavily in the diminished returns category. Probably need to increase the amount of rage required for 1 second of reduction as well.
3: Ignite Weapon is a straight up autoattack damage boost, +haste.
4: What if ravager
also scaled with haste?
5: To top it off, they could also allow deep wounds to scale with haste.
With all these changes in place, haste might even eclipse mastery at lower crit levels.
Removal of 2PT16 + Rage from Enrage would drop our rage per second from 12~ to around 7.5~, which places storm bolt right at 20 seconds. If Blizzard increased the amount of rage required for 1 second of cooldown reduction, to say, 25 per second of reduction...
Our 7.5 rage per second isn't quite enough to get storm bolt down to 20 seconds. This is kind of an abusive way to make haste a better stat, but it would work.
These changes would boost haste to a point where it's competitive, leave the fury playstyle in place, and also leave crit as the dominant stat.
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60-70% of our rage income is spent on heroic strike now, there's plenty of rage in the tank to keep 100% ignite weapon uptime.
(Wild strike is skewed due to bloodsurge procs)