slidecage was right way back when. I read somewhere the other day (don't remember if it was Atlus forums or NeoGAF) that people are already getting cancellation e-mails. So, hopefully that first Monday morning was early enough for me.
I haven't gotten any cancellation e-mail as of yet and I pre-ordered in store that Monday morning. That was a day or two before Atlus announced they sold out in store and you could only get it on Gamestop's website.