DS writes, "First of all, the “bad” news. This patch will not be changing anything about the world around you, that patch will come much later, possibly on Cataclysm release day. You will also not see anything specifically requiring the expansion disc to be installed, such as the new zones, new races, new profession tiers, new battlegrounds, archeology or just generally any level 81+ content. Finally, you will not be able to fly in old Azeroth in this patch.
Now that we got that out of the way, what this patch focuses on is changes to your character and character-based mechanics such as guilds, talents, abilities, gear, etc. Here’s a quick rundown of what to expect."