Despite the fact that Season 1 of SUPERGIRL was a CBS series, showrunner Greg Berlanti and company managed to create crossover between the female superhero and fan favorite CW DC series, THE FLASH. However, fans definitely noticed a distinct difference between the crossover between these two series than, say, THE FLASH and ARROW, or THE FLASH and LEGENDS OF TOMORROW. No, I’m not talking bout the bubblegum-y tone or the sugar high one can get by watching both Grant Gustin and Melissa Benoit on screen together,but rather the justification for these two meeting up.

Unlike with all the other CW series, SUPERGIRL was not an inhabitant of Earth-1. Instead, she was an inhabitant of one of the numerous Earths in the multiverse — an alternate dimension for those not up on their DC lingo. This would certainly seem to put a wrench in things for any future potential crossovers, as the only man capable of making the trip would be Barry Allen (or any other Speedster in the series), thanks to his time-and-cross-dimensional-travel abilities.

In the time since that Season 1 crossover, SUPERGIRL has since found a new home — on the CW with the rest of Greg Berlanti’s universe. We already know there’s a four-way crossover between the now four DC shows on the CW, but how is this possible? Has Supergirl somehow learned to cross dimensions like the Flash, or does Barry take the rest of the crew along for the ride into Supergirl’s world? Well, it sounds like neither, if a recent rumor from Bleeding Cool is to be believed.

SPOILER ALERT for those who don’t want to be spoiled by the end of Season 2 of THE FLASH!

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For those who’ve kept up with THE FLASH so far, you know that the last few minutes of the Season 2 finale found Barry foolishly going back in time to save his mother. While most fans’ gut feelings were that this Flashpoint storyline would play out over the course of the entire season, actor Grant Gustin HAS SINCE CONFIRMED THIS WOULD NOT BE THE CASE.

But don’t expect this would be an event that would easily be forgotten. Flashpoint will have permanent consequences in the storyline, and Bleeding Cool speculates that one of the outcomes will be SUPERGIRL’s world merging with the rest of the CW shows’ world.

Makes sense to me. If you’re going to do something about merging the world, why not do so early on so that we can get that little bit of housekeeping out of the way for the rest of the series’ durations?

If nothing else, this’ll do a lot to get fans absolutely stoked for the upcoming four-way crossover for the shows.

In anticipation of this, ARROW actor Stephen Amell shared the following tweet teaser the superhero team-up.

What are your thoughts on Flashpoint potentially serving as means to bring SUPERGIRL into the Earth-1? Let us know in the comments down below!

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RELATED: GRANT GUSTIN SAYS FLASHPOINT WON’T TAKE UP ALL OF SEASON 3 OF THE FLASH

SOURCES: Bleeding Cool, Stephen Amell (via TVLine)