If you've been following the development of another martial arts MMO, titled Revelation, then you probably heard about Justice already. It's a new MMORPG from the same developer, which is focused on two factions that fight each other time from time.
PvE system focuses on boss battles and world exploration, while PvP offers no safe zones, meaning that battles may occur anywhere in the game. However, the developer has confirmed that there will be special PvP arenas present in the game as well.
There will be seven classes in total, where each class will have its own special combos and storyline.