In the most recent bout of data mining the PTR patch (specifically build 11623), the fine folks at MMO-Champion discovered more changes and clarifications to how warrior abilities will work. Keeping in mind again that this is the PTR and you never know how things are going to change, here are the specifics.
- Revenge damage has been slightly lowered, it now deals [ 31% of AP + 1636 ] to [ 31% of AP + 1998 ] damage at max rank. Down from [ 31% of AP + 2181 ] to [ 31% of AP + 2665 ] damage.
- Improved Revenge now Increases damage of your Revenge ability by 30/60% (up from 10/20%) and causes Revenge to strike an additional target for 50% damage.
- Vitality now increases your total Strength by 2/4/6%, Stamina by 3/6/9% and your Expertise by 2/4/6.(On live, this is Strength and Stamina by 2/4/6% and Expertise by 2/4/6.)
- Trauma now lasts 1 min, up from 15 sec.
As for Revenge, the baseline ability is being adjusted slightly downward from our original exciting 3.3.3 revelation. But Improved Revenge is being hugely buffed. Hugely. When we first heard the news that Revenge would be getting some improvements, we speculated in the comments that perhaps they'd throw some AoE viability in there, and now they have done exactly that. By baking it into the talent instead of the baseline ability (and by removing the stun from Imp Revenge, it appears) you cut back on prot warrior stuns in PvP while giving a strong new reason to pick up Imp Revenge for more damage and more AoE threat. It's a pretty solid change for a tanking prot warrior.