After several weeks of speculation and uncertainty, Supergirl has been renewed for a second season – but it’s not without changes.
Supergirl will move to CBS’s sister network CW, which is already home to Arrow, DC’s Legends of Tomorrow, and The Flash, which recently crossed over with Supergirl.
According to Deadline, Supergirl will also reportedly relocate filming from Los Angeles to Vancouver, a move that is designed to reduce the show’s budgetary requirements, which were cited as one of the main obstacles to its renewal at CBS.
The Flash, Arrow and DC's Legends of Tomorrow already film in Vancouver, and are overseen - like Supergirl - by Greg Berlanti's Berlanti Productions. The CW's iZombie and NBC's Powerless also film in Vancouver.
Though Deadline doesn’t outright say if Supergirl will also “move” to the shared DC TV Universe of The Flash, Arrow and Legends, given this season’s Flash crossover, the multiple Earths already established in The Flash, and DC’s history with universe-merging Crises, a merge is both possible and probably beneficial.
DC Comics themselves seem to play into this Crisis-style crossover possibility, stating on their website: "Considering how popular Season 1’s Flash crossover episode was, one can imagine more team-ups with The CW’s other heroes may await in her future, but we’ll have to wait until Season 2 debuts next fall to know for certain."