After Supergirl’s move to The CW, the network has a total number of 4 DC Comics TV shows in its hands and as you may already know, these show will have a huge crossover.

All of these shows are filmed in Vancouver and they are created for the same TV network, so there are endless number of possibilities for cross-overs. A crossover of the characters from SupergirlThe FlashArrow and Legends of Tomorrow  has already been announced. Another crossover was also confirmed between The Flash and Supergirl. It will be a musical featuring Glee alumni, Grant Gustin (The Flash) and Melissa Benoist (Supergirl). About the villain  that will bring all these shows together, there is no information yet.

During an interview he had with IndieWire , Greg Berlanti talked about various projects of his including Black Lightning series that Fox picked up, Riverdale and the Arrowverse. Berlanti stated his opinion about the crossover as it follows:

“You really are trying to run a single production across three different productions. But they’re run as three separate entities. We have to figure out when we’re borrowing one actor from where. We’re telling one cohesive story; Supergirl will participate, but the storyline doesn’t actively begin there. There are some characters who show up in her episode, but the story begins with The Flash episode and goes to Arrow and Legends of Tomorrow. We’re just getting into designing the bad guy for it, and we start now but it doesn’t air until the end of November. We will put a lot of time between now and then figuring out visual effects sequences. Just today I was holding the three scripts back-to-back – that’s 180 pages of material. It’s a three-hour story, almost a miniseries.”

Let’s hope it will be a good one as it is really difficult to join all these different storylines and make everything seem appropriate. Fingers crossed for Berlanti and his team!