Fucked if I know. I got mine ordered in.
Hasbro are retarded about toys for this show though. They think treasure blindbags and a light up bracelet will bring big bucks and have barely bothered with anything else.
They also fucked up the marketing because although it had a short before the mlp movie the short never bothered to explain you could watch more on youtube so lots of people watching probably think it was just a one off thing.