Re. a third DT single: Distance Over Time is at least 13 minutes longer than Vector, and one of Vector's tracks is just an intro, where there isn't that sort of track on D/T. So it doesn't quite feel like we've heard half the album before release, unlike with Vector. There's still a decent amount that will be new when the album comes out.
Also, isn't it a bit unfair that people seem to be freely discussing it while the song's not available in many parts of the world? Maybe we ought to wait until at least midnight EST to discuss it.