Don't know if anyone has seen this, but I found some additional info on what we can expect when the Pre-Cataclysm patch comes out. In addition to the Gnomer/Echo Isles stories we get:
* Patch 3.9 will introduce the Cataclysm world event, which will begin taking place and culminate a few weeks before the expansion releases, with the Cataclysmic destruction actually taking place at that point.
* The servers will come down when the event culminates, and when they come back up you'll see the intro cinematic and all of the updated Azeroth will be available.
* The new race / class combos and 1-60 content will be available.
Groundhog Day