During the pre-show for tonight's tapings, a local radio DJ was doing a stunt in the ring. As he was leaving, he made a comment about how everyone should know that Wrestlemania was coming to Seattle next year.
The ring announcer jumped at that point, and made sure to come into the ring to let people know that, yes, Seattle is being considered (big pop), but no decision has been reached yet (HUGE boos). So there's the official WWE position at this time.
Here it is, recorded Feb 5th...the 45 minute old school epic between the NWA Mountain State Heavyweight Champion: Maestro of Professional Wrestling The Stro vs. NWA World Heavyweight Wrestling Champion: "Scrap Iron" Adam Pearce