New Skyrim Dawnguard DLC Pack Revealed

Bethesda has posted a teaser for a new upcoming DLC pack for their game The Elder Scrolls V: Skyrim. The image shows that the DLC will be named Dawnguard, and also that more details will be announced at E3 2012. What is also interesting is that the site just says coming to Xbox 360, one of the three consoles that the game is available on (Xbox 360, PS3, PC). What do you think about this news from Bethesda?