According to
www.worldofwar.net, talents will be retrainable by talking to a corresponding NPC <u>only in beta!</u> Additionally, theres been some updated in the beta:
- More responsive guards
- Powered up Legendary characters. (Thrall gets a buff)
- PvE server gets occupied zones in it's major cities so that any enemy who enters is immediately targetable instead of having to wait for them to attack a NPC.
- All auction house refunds will happen via the game's mail system.
Also, there have been some changes to Agility:
Currently, DPS is affected 100% by Strength for all classes. For the next patch, we are going to go back to the way Agility worked before while still keeping some of the new Agility functionality.
DPS for the Rogue and Hunter: Agility will contribute to 50% of the DPS for Rogues and Hunters. Strength will contribute to the other 50%.
Critical Hit for the Rogue: Agility will greatly enhance the chance to score a critical hit for Rogues.
DPS for all classes except Rogue & Hunter: Strength will contribute to 100% of the DPS for all classes other than Rogues and Hunters.
Critical Hit for all classes except Rogue: Agility will enhance the chance to score a critical melee hit for all classes (critical spell damage is determined by Intelligence).
Dodge for all classes: Agility will determine a character’s chance to dodge an attack.
We feel that changing back is the best move for the Rogue class. Please be sure to give as much feedback as possible once you are able to test the next patch.
~Kat 
Perhaps the next patch is near?