Following the reveal of their fall lineup earlier today, Variety has a report from a conference call that CW president Mark Pedowitz held with reporters. The CW head said that planning is underway for a crossover between all four of the network's DC-based superhero shows. Pedowitz said that he feels confident that the shows' producing teams, led by Greg Berlanti, will make sure that "our annual crossover event this fall [will] be the biggest one ever."

Since the launch of "The Flash," crossovers between the CW's DC series have become an annual event, usually airing ahead of the midseason finale. The 2015 crossover between "Flash" and "Arrow" lead directly into the launch of "Legends of Tomorrow." Pedowitz's comments now indicate that the 2016 crossover could include all four shows: "Supergirl," "Flash," "Arrow" and "Legends."

The CW president also spoke about the discussions that took place between the network and CBS that brought "Supergirl" to its new network. Pedowitz revealed that conversations about acquiring the show only began about a week and a half ago. On "Supergirl's" move, Pedowitz said the show is "where it should have been in the first place." He also predicts that "Supergirl" will be one of its top three most-watched series this fall.

He clarified that there isn't a major new mandate for the show's producers, other than moving production to Vancouver. "I don't think [the move] will have a major effect on how they actualize what they do," said Pedowitz. He addressed speculation that the move would mean losing cast member Calista Flockhart, who plays Cat Grant, saying that discussions are in progress with the actress and that she wants to continue with the series.

"Supergirl" airs at 8 PM on Mondays this fall on the CW.