Two new partners and a gameplay video. And confirmed price.
Mai (with cards like Harpie Channeler)
Isis/Ishizu with her classic EARTH-Attribute Fairy-Type Deck
Gameplay vid by the V Jump Reiji and Tokunosuke/Flip Cosplayers. The former is running DD, while the other is running Performapals post SECE/Special Summon Evolution Pack.
(The information about Isis and Mai are from here)
The video also reveals the game costs 3000 Yen (plus tax)