According with the deluxe edition will contain
3 Characters 2 Armor sets + Season pass character
i guess could be: Hilde,ZWEI,Viola and Algol or a guest character
News about Persona 4 Arena:
I dont know if is a update,sequel or DLC but have 2 characters more Yukari and Junpei,Shadow mode for all characters (except Elizabeth and Shadow Labrys)
http://www.siliconera.com/2013/08/15/persona-4-arenas-new-version-adds-persona-3s-yukari-and-junpei/
The shadow no...
Remember someone mentioned "Talim is still alive" when he talk with the game creators and, Talim and Zasalamel are in the list of characters Soulcalibur V