Class changes in 1.2 include new abilities for the Warrior and the Knight, a nerf for the Bounty Hunter, and more. Every class will receive changes, and all skill tree points refunded so you can look over the trees again before deciding how to rebuild your class. "Some players will be excited, some might not. That's always the case when there's tweaks to classes."
Head over to ign and read it all a good read indeed:)
http://pc.ign.com/articles/121/1219843p1.html