Anduin has grown up in 3.3.3.
Helion is in the files also but I can't get his texture to load. Bit more to come.
The biggest thing we found was a Expansion03 folder with Twilight Hammer doodads which included banners and portals. I would imagine these will be for the world event.
Earth Portal
Fire Portal
Water Portal
Air Portal
Twilight Hammer Banners
Twilight Hammer Altar
There are also several devices which will likely be things you click on.