The AOA add-on will have one more quest, plus a huge overhaul in fixes and updates.
-Fixes the elevator button glitch in the Outpost 21 Apartment Complex.
-The Start NPC that gets you through the CharGen process will take you to the teleporter in the Lost City, instead of close to Outpost 21.
-The Start NPC gives you journal entries in the beginning.
-No more "topic guessing games" as greetings are added to every quest.
-Fast travel is added so the amount of travel is reduced per quest.
The DLC will be released in the first quarter of 2010, hopefully.