You don't just make a movie, pull in a little over $1 billion at the global box office and call it a day - sequels and entire franchises have been built on less. So, when the 2019 R-rated Academy Award-winning film, Joker, set new several box office records, news of the follow-up was a matter of when and not if.
Now, we just got "confirmation" that Warner Bros. Discovery is working on Joker 2.
Todd Phillips first broke the news when he posted two photos of the cover of what appears to be the finished script for the Joker sequel, also known as Joker: Folie á Deux along with an image of Phoenix reading the same script.
According to the ever-reliable Google Translate, Folie á Deux means "shared madness" and is an actual term used in psychiatry to refer to individuals with similar mental disorders and is often seen in members of a close family. The psychiatric syndrome is also sometimes referred to as Shared Delusional Disorder or SDD.
This would imply that the sequel will pair Joker with a different troubled individual albeit probably not a family member (please, we don't need a long lost brother storyline for such a masterpiece). Some theories suggest that this could mean Harley Quinn, but our bet is that it's on an entirely different character, probably someone who will become the "true" Joker.