Sasquan has just been announced as the name of the 73rd Worldcon in Spokane, Washington. The Spokane bid won 645 to Helsinki's 610 votes in the third round, after Orlando's votes were redistributed when it came in 3rd.
Sasquan will be held August 19-23, 2015 at the Spokan Convention Center. Guests of Honor aren't yet named on the site as of the time I'm typing;
kevin_standlee tweeted that they are Brad Foster, David Gerrold, Vonda McIntyre, Tom Smith, and Leslie Turek.