So, we don't often share our thoughts on upcoming changes this early, as plans can change very rapidly. Please keep in mind that none of the following is set in stone – it hasn't even been developed yet – and there’s any number of issues that could cause us to decide to take a different approach. That said, we definitely agree that Arms feels a bit empty at the moment, and want to fill it out a bit more, and we want to add some talent choices to both Arms and Fury that provide options for more involved gameplay. Here’s what we're thinking:

• Rage generation increased by 20% for Arms.
• Rend returns for Arms. Costs 10 Rage, deals damage over 18sec, with a burst of bleed damage at the end. Total damage is similar to a Mortal Strike.
• Thunder Clap is usable in any stance. AoE damage and snares, 6sec cooldown. 30 Rage cost for Arms, free for Protection.
• We’re replace the level 45 talent row (Staggering Shout / Piercing Howl / Disrupting Shout) with:
• Varies by spec:
• Arms – Taste for Blood: Passive. Rend ticks grant 3 Rage.
• Fury – Furious Strikes: Passive. Reduces the cost of Wild Strike by 10 Rage.
• Protection – Heavy Repercussions: Passive. Shield Slam deals 50% additional damage while Shield Block or Shield Charge is active.
• Sudden Death: Passive. Auto attacks have a chance to trigger Sudden Death, making your next Execute free and usable on targets above 20% health.
• Varies by spec:
• Arms – Slam: Active ability. Costs 10 Rage. Deals 100% weapon damage. Each consecutive use increases Slam’s damage by 50% and Rage cost by 100%, stacking up to 2 times. Benefits from Mastery.
• Fury – Unquenchable Thirst: Passive. Bloodthirst has no cooldown.Protection – Unyielding Strikes: Passive. Devastate reduces the Rage cost of Heroic Strike by 6, stacking up to 5 times. Lasts 10 sec. No longer refreshes while at 5 stacks.

Again, this is all very much in the formative stages. Any or all of the above could end up changing in any number of ways. But we are listening, and are doing our best to make Warrior gameplay awesome in Warlords.

EDIT: As mentioned, lots of iteration on these early plans. Changed the +25% Rage gen to +20%, so that 3.6speed weapon swings generate an even 30 rage. Changed Slam's max stack count to 2, since Slamming at any point higher than that is a trap.

EDIT 2: Clarified that Heavy Repercussions does count Shield Charge as well.

EDIT 3: Oh, forgot to mention, Slam benefits from Mastery.