In a new interview with The Playlist, Phoenix addressed the speculation.
Asked whether a follow-up to the film was on the cards, Phoenix answered: “I don’t know.”
While nothing has been confirmed, the actor said that he believes there is more to explore with the character.
The 46-year-old said: “From when we were shooting, we started to – you know, this is an interesting guy. There are some things we could do with this guy and [explore] further. But as to whether we actually will? I don’t know.”
Phoenix starred opposite Robert De Niro, Zazie Beetz and Frances Conroy in the psychological thriller.
“Joker” earned 11 nominations at the 92nd Academy Awards, winning Best Actor [Phoenix] and Best Original Score.
The film lost out to Bong Joon-Ho’s critically acclaimed social thriller Parasite in the Best Picture category.