Hmm, 9 days... if every chapter takes up at least 2 minutes (Bleach time) then we're looking at anything between 9 chapters and 6480 chapters left... before this war is over, which doesn't necessarily mean the end of the manga.
The changing of the landscape confused the hell out of me, had to re-read those parts a couple of times. It will probably be explained in the next few chapters but as I understand it, he simply re-designed the buildings, the landscape and the weather, leaving all the inhabitants unharmed.
Unless he flipped a secret switch that turned everything back to it's original state, that's a pretty over-powered maneuver.