The website is open, pre-order is up, and so is the opening movie among other things.
A bit too many balloons as usual but at least the main one is good. Shiguma (Sigma?) listed as subcharacter but she appears in Concept page background and her description seems to indicate she’s a key person. Maybe true route?
Interestingly the game is a bit cheaper in Getchu (both editions) and Sofmap (deluxe edition).