Yukari Takeba and Junpei Iori of Persona 3 fame return as new combatants, bringing the game's overall roster up to 15 selectable Persona users. The update also adds a new "Shadow Type" system, according to Shoryuken's translation of Famitsu's hands-on report. This gives players the option of replacing the game's "One More Burst" mechanic with an alternate Shadow form, which grants temporarily unlimited special meter and augmented/enhanced attack properties. Additionally, Shadow Type characters bring their special meters with them to the next round, whereas historically special meter resets at the beginning of each fight.
An "S Hold System" is also being added, which allows players to charge up certain special attacks to achieve augmented effects, such as invulnerability. It will also now be possible to cancel normal moves into hops, which will add more utility for combo crafting. Furthermore, the game's existing cast is being outfitted with new moves and abilities, an ongoing list of which can be found here.
Location testing is underway at Taito Hey in Akihabara and Taito Station Nipponbashi in Osaka, from now through this Sunday. We're keeping our ear to the ground for further information about when this update will be released, and whether it'll garner it's own name, ala Super Street Fighter 4: Arcade Edition, or Guilty Gear XX Accent Core Plus R.