Now while attending PaleyFest 2014, Berlanti confirms Supergirl to CBR stating it's in the early stages, and that he was "not allowed" to talk about the project.
"We're just starting to work on it," Berlanti said. "We haven't gone to the networks yet, so. I'll be happy, very excited to talk about it once we know where its home will be and that kind of stuff, but not at this moment."
Previously released details also mentioned the Supergirl series still had to be shopped around the networks, and also that it was needed to get permission from DC to use the words "Super" and "Girl" as part of the potential title.
DC Comics Chief Creative Officer Geoff Johns is also involved with the series.