One of the longrunning plot lines of Gotham has been the creation of the city's own Clown Prince of Crime: the Joker. Judging by new photos that have leaked online, the series' final incarnation of the character may be confirmed.Reddit user Aliens218 posted a photo from the Fox series that shows an aged, completely bleached version of the infamous villain as portrayed by Cameron Monaghan. The image had surfaced last week and has been corroborated by a new close-up image of the Joker leaked online.RELATED: Gotham Teaser Promises the Joker Moment We've Waited 5 Seasons For

Featuring a visibly more decayed version of the character, the sequence presumably takes place during a flash-forward sequence, which promises a confrontation between adult Bruce Wayne as Batman and Joker.

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While Monaghan has portrayed different figures that could ultimately become Gotham City's most iconic villain, this version appears to be the final form of Batman's foe.

Airing Thursdays at 8 p.m. ET/PT on Fox, Gotham stars Ben McKenzie as James Gordon, Donal Logue as Harvey Bullock, David Mazouz as Bruce Wayne, Robin Lord Taylor as Penguin, Camren Bicondova as Selina Kyle, Erin Richards as Barbara Kean and Sean Pertwee as Alfred Pennyworth.