This month release (exact date TBA). 3,150 Yen (inclusive of tax).
Its packaging and a few other images can be seen in this previous posting.
Images are from Senaka Blog.
On a completely separate note, box art of another Kotobukiya kit spotted: 1/35 scale "Border Break" Cross Frame Model Cougar Type-S S Class Color Ver., which was announced back in late July.
November release, 3,990 Yen (inclusive of tax).
Image is from Kotobukiya Blog.