Probably. The Arkham series has a connected storyline, and it would make sense for the Arkham Knight new story to be a continuation. This way, it can keep the lore consistent and develop the characters further. For example, we might see how Batman has changed since the last encounter with his foes.
The new story elements in Arkham Knight include expanded backstories for some characters and new villains with unique motives and challenges for the hero.
Well, one new aspect is a deeper exploration of Batman's inner conflicts. Additionally, there are new alliances and betrayals that keep the story exciting and unpredictable.
There are some new plotlines and character developments. The story expands on the Arkham universe with fresh challenges and mysteries for Batman to solve.