It was bound to happen at some point. While SUPERGIRL has been on its own little island on CBS, far away from ARROW, THE FLASH, and LEGENDS OF TOMORROW on The CW, rumors have been flying around since the show’s debut that it would eventually cross over with the other three shows. All four shows were created by Greg Berlanti and company, so why wouldn’t they cross over at some point? Berlanti himself even confirmed that such talks were taking place. Of course, the difference in networks always seemed to be the major sticking point, but most fans believed that it was one that could be overcome. And it turns out they were right.

Comic Book reports that Grant Gustin, who plays Barry Allen (a.k.a the Flash) on THE FLASH will be a guest star on the March 28 episode of SUPERGIRL. So what of the actual details of this crossover?

As of this point, it looks like this crossover will be one-way, in that Supergirl would not be heading over to the CW anytime soon. Sources told Deadline that part of the reason for this is budgetary, in that SUPERGIRL has a bigger budget to work with than THE FLASH. Perhaps getting that girl to fly in THE FLASH would be an extra strain on resources they couldn’t afford? The sources are also saying that they will justifying Supergirl not being in THE FLASH with a multi-dimensional excuse. Supergirl as of now is not able to cross dimensions, while the Flash is.

For those who are up to date on their ARROW-verse, his raises a great deal of questions about the world in which Supergirl lives. Does this mean all of SUPERGIRL takes place in Earth 2 (or Earth 8, or any non-Earth 1 for that matter?)? It is a cool thought that we’d be following a show set in a completely different universe, even if the differences are minute.

Executive producers Greg Berlanti and Andrew Kreisberg had the following to say regarding the crossover.

“We are so incredibly excited to announce something that we have dreamed of happening since we starting making SUPERGIRL. We want to thank Grant Gustin for making the time to come visit (on top of his already immense workload) and all of the folks at CBS, The CW, Warner Bros. and DC for working this out. And finally thanks to the fans and journalists who have kept asking for this to happen. It is our pleasure and hope to create an episode worthy of everyone’s enthusiasm and support.”

What are your thoughts on this crossover? Let us know in the comments down below!

SOURCE: Comic Book, Deadline