I'm not sure but I guess it'd be on Wednesday morning Japanese time, since that's exactly 7 days from the release... if not, it'd be a little later. (EDIT: Hmm, come to think of it, I don't know how Oricon operates, so it might appear on Monday...)
Seikan Hikou went up to #4, but no figures still. The CD above it had 2474 CDs sold.