Well according to Wizards of the Coast latest tweets it does appear the print run was only 12k and everything else will see their orders cancelled and money refunded, rip.
Doesn't appear to me aswell but i'm pretty sure in other mythic edition it showed to me on the website so it probably is because it's not available yet.
Yeah I sence that they were prepared to meet demand this time and just releasing it over time.
EDIT: Got the confirmation email already.
Estimated delivery: May 11 – 20
My birthday is May 11, would be great present for going back home, please.