The problem with both Lightwell and Riposte in LK has to do with the pace of combat. A small self-heal isn’t useful in an environment where the healers either keep you up easily or you die to spike damage regardless of the decisions you make. An attack speed debuff isn’t super useful in a PvP environment where players die so quickly. But with the larger health pools in Cataclysm, both of those talents become more useful. Saving priest mana and GCDs by using Lightwell could help turn a failure into a victory. Slowing down incoming damage can help a rogue go toe-to-toe with another melee class.

Counterattack is probably going away. We haven’t released new hunter trees yet. Shiv is changing a little bit to be more of an enrage dispel. (Source)