As previously reported, Dissonance of the Nexus will serve as the epilogue DLC for Sword Art Online: Fatal Bullet.
There will also be a free update that adds a new dungeon and boss battle to online co-op while introducing Death Gun and Lievere to Hero Battle Quest.
Dissonance of the Nexus introduces new characters—including returning core characters from Lost Song and Ordinal Scale—as well as new enemies and bosses.