Quick answer: Netflix's current official material does not identify a Season 5 subject. Ian Brennan told Us that the Lizzie Borden season does not deliberately reveal who comes next, although earlier seasons sometimes contained clues that became meaningful later.
Did Season 4 reveal the next Monster?
Brennan said no, while noting that the creators have sometimes planted references to future subjects without knowing exactly how those references would later be used.
Is Season 5 officially announced?
No specific next subject is identified in the current Netflix material. Names circulating online should be treated as unconfirmed until Netflix or the creators announce them.
FAQ
Did Monster Season 4 tease Season 5?
Brennan said it did not deliberately do so.
Who runs the Lizzie Borden season?
Ian Brennan is creator/showrunner, with the anthology associated with Ryan Murphy and Brennan.
Source: Us Weekly; Netflix Tudum.
Fact-check note
This article distinguishes the Netflix dramatization from documented history. Lizzie Borden was acquitted in 1893; claims about guilt, private relationships, motives and events not established by surviving records are described as fictionalized or disputed rather than settled fact.
Netflix Tudum: The True Story · Netflix Tudum: Ending Explained · PEOPLE: Fact vs Fiction · PEOPLE: Emma/Lizzie Fact Check
Related: Monster: The Lizzie Borden Story Finale Explained — What Ian Brennan Says About the Ending
Related: Monster: The Lizzie Borden Story Ending Explained — What Happens in the Finale
