Shane Dabiri is a bit wordy about it -- talking about the arena system opening up on the 16th, the future opening of the Black Temple where players will encounter Illidan, and the growth of the European community -- I think his basic message can be summed up as follows:
Happy birthday to you, happy birthday to you, happy birthday WoW Europeeee... Happy birthday to you!
And I think that's a sentiment we can all agree with. Congrats, Europe, for making it through two WoW-filled years. Try not to have too much fun celebrating your big day.