Finaly we have some information about the new WoW expansion: Wrath of The Lich King. New infos about Inscription, and a realy good enchanting change.

Inscription

• Inscribers will create glyphs that allow players to modify their spells and abilities.
• Going by the first recipe, which requires Peacebloom, they'll rely on the herbalist gathering profession.
• Every player will get a new spell book page to which they can add six glyphs - currently, four major and two minor.
• Major glyphs will be effective in combat - adding damage over time or stun to a physical attack, for example - while minor glyphs will give convenient or cosmetic improvements, removing the need for some spell reagents.
• Glyphs can be sold at the Auction House

Enchanting

• Allowing enchanters sell their enchantments at the Auction House is still planned.

source: Eurogamer.net

New 2.4.2 PTR Patch notes, with some profession changes. Void Shatter without cooldown, is realy nasty.

The latest patch notes can always be found at
http://www.worldofwarcraft.com/patchnotes/

The latest test realm patch notes can always be found at
http://www.worldofwarcraft.com/patchnotes/test-realm-patchnotes.html

Professions

* All 23-hour profession cooldowns are now 20-hour cooldowns.
* All 4-day cooldowns are now 3 days, 20 hours.

Enchanting

* Removed the cooldown from Void Shatter.
* Void Shatter recipe now correctly requires 375 enchanting.

Engineering

* The Engineering supply item Delicate Copper Wire will now properly fit into engineering bags.

Jewelcrafting

* Brilliant Glass no longer requires a forge.
* Brilliant Glass now has a small chance to make an epic gem.
* Quick Dawnstone, Reckless Noble Topaz, Forceful Talasite are now all available at the Quel’danas gem vendor.

Leatherworking

* Completing the quest “The Journey Has Just Begun” will now properly teach how to make an Onyxia Scale Cloak .
* Greatly reduced the reagent cost for Glove Reinforcements. Also reduced the skill gain range slightly.

Latest 2.4 Patch notes, with a lot of Profession changes.

Professions

• Added several new tradeskill items to the new Sunwell Daily faction vendor:
  • Enchanting recipe to shatter a Void Crystal into two Large Prismatic Shards.
  • Enchanting recipe to increase Defense Rating by 15 for chest armor.
  • Three jewelcrafting recipes to cut gems with spell haste from Dawnstones, Talasite, and noble Topaz.
  • Two new meta gem recipes.
• Alchemy
  • Gift of Arthas now stacks to 20.
  • Transmute Arcanite no longer has a cooldown.
• Cooking
  • Broiled Bloodfin now increases resistances to all schools of magic instead of increasing Stamina and Spirit.
  • New recipes, Charred Bear Kabobs and Juicy Bear Burgers, can be purchased from either Bale (Horde) or Malygen (Alliance) in Felwood. These recipes requires 250 skill to learn, and are created from meat found on level 48-56 bears. This will aid players in leveling up their cooking skill to 300 without fishing.
• Enchanting
  • Reduced the materials required for Enchant Shield – Resistance
• Engineering
  • Gagsprocket in Ratchet now sells the plans for the Minor Recombobulator.
  • Goblin Jumper Cables and Goblin Jumper Cables XL now display cooldown information in their tooltips.
  • Removed the level requirement for the Craftsman's Monocle.
  • The stun caused by engineering Bombs and Grenades is now considered an Incapacitate effect and uses the appropriate Incapacitate diminishing returns. Bomb and Grenades can now inflict damage to targets immune to Stun and Incapacitate effects.
  • A new recipe has been added for Rocket Boots Xtreme Lite, a cloth version of the Rocket Boots Xtreme. This pattern drops from Mechano-Lord Capacitus.
  • Rocket Boots Xtreme now have all their stat points allocated toward Attack Power, and will no longer have Stamina.
  • Rocket Boots Xtreme and Rocket Boots Xtreme Lite will cause players to drop a PvP flag if used while carrying one. (Warsong Gulch, Eye of the Storm, and Zangarmarsh)
• Fishing
  • New Fishing Daily Quests! Visit the mysterious old man fishing at Silmyr Lake outside of Shattrath City to discover what treasures he has to offer.
  • Find Fish now correctly tracks Schools of Tastyfish and Muddy Churning Waters.
  • Feltail fishing nodes have been changed to Brackish Mixed Schools; they now produce mostly Golden Darters and some Feltail.
  • Removed the level requirement from the expert fishing book, The Bass and You.
• Herbalism
  • Ancient Lichen now has a chance to drop a Fel Lotus where it used to drop a piece of random green jewelry.
  • Black Lotus replaced by Fel Lotus in herbalism skinning tables for Outland creatures.
  • Increased the chance that Felweed, Dreaming Glory, Ragveil, and Flame Caps will contain a Fel Lotus.
  • Warp Splinter can now be skinned with Herbalism in heroic difficulty.
• Jewelcrafting
  • A new jewelcrafting recipe has been added to transform many green quality gems into a single random blue quality gem. This recipe is available from grandmaster jewelcrafting trainers.
• Leatherworking
  • Shadow Oil will now fit into Leatherworking Bags.
• Mining
  • Increased the skill up potential for most smelting recipes.