Taken from 7/20/2010 Changelog 
- Kraxxis the Shadowweaver can now be released from his prison in Khaldun. Kraxxis is a powerful superchampion, and it is NOT recommended you attempt this without a substantial group.
- Choth-uarli the Reanimator has been to death and back, and brings his army forth.
- Khaldun storyline has been expanded a bit. Look for the books!
- New puzzles added both by in-game staff and in code.
- Over 20 new ground-stealable rare items.
- Killing Creatures in Khaldun 2.0 will now reward prestige with the Excavation Team, allowing you to purchase treasures. In the meantime, Kraxxis drops the entire loot table.
- Several new and very deadly creatures added, each with unique abilities.