Based on news coming out of E3, The Elder Scrolls V: Skyrim’s first DLC Dawnguard is slated to arrive on Xbox 360 June 26. This information is from on a quote from Bethesda’s Todd Howard. According to Howard, this date is contingent on the forthcoming Xbox 360 and PC Dawnguard DLC beta going well according to the team at Joystiq.
Bethesda is currently recruiting Xbox 360 and PC players to test the upcoming DLC content prior to it’s public release later this month. Selected applicants will receive a fully functional version of the DLC content early, complete with achievements. Bethesda hopes to select participates within a week.