The Spokane in 2015 Worldcon bid, says Marah Searle-Kovacevic, would hold its proposed Worldcon from August 19-23.
The bid started off with facilities commitments for Labor Day weekend, then negotiated a change in response to fans’ comments at Renovation.
Presumably this happened some time ago but – echo echo echo – it was news to me, and the information hasn’t been added to the bid’s webpage.
The Spokane webage was updated overnight and now shows the August dates.