The news surfaces amid rumours that "Mad Max: Fury Road" director George Miller has been tapped to helm the movie, reported Aceshowbiz.
The apparent uncertain status of the movie sparks many speculations.
Some say that the studio might do other DC movies such as rumoured Batman solo series first before working on the Superman solo movie, while others suggest that it is just in a holding pattern attempted to give writers time to flesh out their story ideas.
While it may be a long time before seeing Superman going another round on his own, fans can enjoy the action of DC's mightiest heroes in "Batman v Superman: Dawn of Justice", which is scheduled to open in the US on March 25, 2016.