Arcade Fire Announce New Single/Wish Us Luck with Finals

Arcade Fire posted this postcard on their website announcing their new single, Suburbs/Month of May, out on June 1. Thanks guys.
Will Arcade Fire's new album be the best/worst of 2010?
Is Arcade Fire too effing mainstream?
Will this single be featured in a popular trailer for a Spike Jonze movie?
Will this single lead to a sweet remix by Chill O'Reilly?