Titans was supposed to be followed by Metropolis, about Lois Lane and super villain Lex Luthor. The live-action drama, which had a 13-episode straight-to-series order for a 2019 debut, will now be redeveloped.
Source and more: Deadline
Per sources, Metropolis may or may not return from redevelopment. It’s therefore cancellation for Metropolis, at least until further notice. Stay tuned to see if the prequel series survives redevelopment hell.