Last year, Kick Ass 2 #5 by Mark Millar and John Romita Jr was accidentally left off the order form. It was in Previews, but not on the form that retailers used to order the comic. They did their best to raise awareness of this, but in the end reduced orders saw Marvel choose to match orders from issue 4.
They might not be able to do that as easily this time.
Hit-Girl #1 by Mark Millar and John Romita Jr was solicited in Marvel Previews for June. But, again, it was missed off the retailer order form.
The FOC date is the 6th of June. If you want a copy, make sure your retailer knows by then…