You don't actually need the box in order to play. All you need is the serial key. Not even that if Trion decides upon a grace period (i believe they had a fairly long one for Rift).
The blockbusters at the end of my road is still alive so I might have to rent it from them!!!
"Gokila:I checked and see that the release date has been pushed back by the manufacturer.
It is now April 12, 2013."
From a live chat, he did however also say my order is still expected to be delivered by the second, so god knows. All i know is if my copy aint here on the second im gonna go mental.