Season 4

Season 4 (also known as Rise of the Night & Rise of the City) is the fourth season of Arkham. It premiered on October 12, 2018 and concluded on April 12, 2019.

Synopsis
The city of madness is never sleeping due to villains that are unleashed, the origin story starts to unfold deeper and deeper into the origins of the heroes and villains. Jim tries to stop the villains from unleashing madness. The Riddler, The Penguin start becoming friends? The Mad Hatter starts his conquest to find his sister instead of unleashing more madness into the city? Bruce starts his great journey into becoming Batman?

Confirmed Plot Points

 * Hush will be introduced this season; a prototype Hush rather.
 * Professor Pyg is officially introduced this season.
 * The Son of Pyg will be further explored.
 * Oswald's mother will further explored as mentioned in past seasons and episodes.
 * Azrael will be introduced and learned of the mythology of the character.
 * The group known as "Legion of Doom" is introduced this season.
 * Poison Ivy is introduced this season and will be given an origin to her success to becoming a villain.
 * "Rise of the City: No Man's Land" refers to the infamous "Iceberg Lounge" and the Joker revision among others.
 * Also we learn that, Jack Napier is not the real Joker, only pretending. Someone is the real Joker out in Gotham City.
 * Alice Tetch (Jervis Tetch's sister) will be introduced in the season.
 * Bruce won't be Batman just yet, but will go deep into Batman.
 * Ra's Al Ghul will become the Demon's Head.
 * Dr. Moon will be introduced this season.