I have a 10/31/17 release date for the physical release in the west... But maybe it did release in Japan August's 30th ? I did not see it in any media create thread though...
I will add it if you (or anyone) can confirm it is out in Japan (physical version).
And thanks for the hint.
actually was on aug's 31th. sold 2913 on Dengeki (position 22) and ~3300 on Famitsu with ~40-60% of the stock remaining. I can't find the chart for Famitsu on my iPhone. later I grab on my computer!