Now, according to the series producer, even greater crossover possibilities have opened up.
Supergirl takes place in an alternate universe from the rest of the CW superhero series, a leftover element from its originally having debuted on the competing CBS network before moving for Season 2.
However, now that the superheroine has participated in the massive network-wide weeklong “Invasion!” crossover, her place as part of the so-called “Arrowverse” is more secure than ever.
“We hadn’t discussed it formally, but I think that certainly after these three episodes, there’s literally no limit to the things that we could do.