Fire

• Improved Scorch: The debuff from this talent no longer stacks, and instead can apply the full effect from a single cast of Scorch.
• Glyph of Improved Scorch now increases the damage of your Scorch spell by 20%.
  

This is going to make a lot of raiding mages very happy. It essentially normalizes the debuff to match equivalent debuffs, like Improved Shadow Bolt. Streamlining an unnecessarily complicated debuff is a great thing. It’ll lift a needless burden from mage DPS. And yes, there are mages getting drunk in celebration this evening. It’s somewhat disturbing, really.
Frost

• Frozen Core now also causes your Ice Lance criticals to reduce the cast time of your next Frostbolt or Frostfire Bolt by 0.4/0.7/1 sec.
  
• Glyph of Eternal Water – Your Summon Water Elemental now lasts indefinitely, but your Water Elemental can no longer cast Freeze.

Patch 3.3 is the last major patch of Wrath of the Lich King. With the new Icecrown Citadel 5-man dungeons and 10/25-man raid arriving soon, patch 3.3 will deal the final blow to the Arthas.