WWI08: New WoW arenas, nonlinear dungeons and goodie bags

For the World of Warcraft fans who might've missed some coverage today, here are some of the highlights, care of WoW Insider:

• Check out these awesome goodie bags
• A look at Lake Wintergrasp, a non-instanced Battleground, as well as new arena maps from the PvP panel
  
• From the Dungeons and Raids panel, we learned about the return of nonlinear dungeons in Wrath of the Lich King.
• A video recap of the first day of WWI, with some good footage of the costume and dance contest (start at 1:45 for that)
  
• Did we mention awesome goodie bags?