From March 7th, 2015 until June 19th, 2015, Japanese 7-Eleven stores will be taking orders for an exclusive set containing the special pre-order ticket for 18th Pocket Monsters movie - The Archdjinni of Rings: Hoopa. The set will include a DVD containing an all-new prequel OVA to the movie called: The Minidjinni of the Word "Appear!" Hoopa (おでまし小魔神フーパ ) and will be available to be picked up from June 19th.

The OVA will most likely air on Pokémon Get TV or a movie special and be included on the Blu-ray/DVD releases of the movie but nothing has been announced or confirmed.

The Minidjinni of the Word "Appear!" Hoopa Summary:

The story is set when Hoopa's companions Barza and Mary were still children. The three of them lived happily together with the villagers in "Arkhē Valley", a place far from Désser City where Hoopa later met Satoshi and the others. Everyone there loved Hoopa's rings, which could make anything and everything appear!

One day, the three of them were helping an old woman make donuts. Hoopa's eyes started glittering at the sight of these round treats it had never seen before! But when Hoopa's rings get used to make donuts, things quickly get silly!?