User blog comment:TheDarkKnightHasRisen/A Tale of Two Villains/@comment-68.59.197.100-20120809013855/@comment-77.101.53.93-20120816104409

Oh, yeah, there were some posters of cadmus near the Joker statutes in Harley's Revenge...but...he got cremated and his body was moved from location to location, according to the comics after Arkham City.

Personally, I like to see:

Two-Face: Seeing as he won the gang war, i'd like to see his gang all over Gotham.

Penguin: Starts another gang-war with Harvey.

Ras Al Ghul: His death, along with Hugo's, was bull! It was basically Batman Begins, only with Strange instead of Crane.

The Joker: May appear during the "Fear Toxic" scenes (maybe him beating Jason to death, shooting Barbara, and finally you fight him with many other Jokers (to make it hard to know whch Joker is the real one) as well as a Titan Joker. The first indication of the Joker being in the fear gas could be "Wow, that look like it really hurt" followed by his laugh. Voice: Either Kevin Micheal Richardson, John DiMaggo or Christopher Corey Smith