If Supergirl had gone on for more than six seasons, the series would have continued without its titular Girl of Steel.At the Ultimate Crisis convention, new details were revealed regarding Supergirl's final season. Originally, the Arrowverse series was set to conclude with Season 7. However, since "the cast was tired, they merged it with the sixth." Jessica Queller, who was a writer on Supergirl for the first three seasons and an executive producer on the last three, reportedly pitched a Kara-less Season 7 to The CW, but the network turned down the idea. No additional details were revealed regarding what Season 7 of Supergirl would have looked like without Melissa Benoist's Kara Danvers.RELATED: Booster Gold Was Meant to Save Legends of Tomorrow From Cancellation

Supergirl premiered on CBS in 2015 but moved to The CW after Season 1. The DC series ran for 126 episodes across six seasons with the series finale being released in November 2021. The two-part series finale, titled "Kara," ended with Kara Danvers becoming CatCo's new editor-in-chief and revealing her identity as Supergirl to the world through an exclusive televised interview with Cat Grant. Benoist played Kara Danvers/Supergirl in all six seasons of Supergirl as well as several crossover appearances in The Flash and other Arrowverse series.

While the series finale wrapped up the majority of Supergirl's plot threads, "Kara" did leave the door open for some characters to return in a future Arrowverse appearance. Jon Cryer, who portrayed Lex Luthor in Supergirl, revealed that he would be interested in returning to the Arrowverse. "Certainly, I would not be surprised that that happened," Cryer said in November 2021. "Everybody made sure to leave the door open for that. The toughest thing in the last year was the quarantine rules made shooting episodes much more arduous than they normally would be. So that made everything kind of loaded, so I'd say that, before they dropped the quarantine, it was very unlikely that Lex would ever come back, but now that they've dropped the quarantine, it's possible."

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Chyler Leigh, who played Alex Danvers/Sentinel in Supergirl and reprised the role in The Flash's "Armageddon" crossover event, has also pitched her Arrowverse return in the form of a spinoff series with Alex's onscreen spouse Kelly Olsen/Guardian (Azie Tesfai). "I would do it all over again and I'm still rooting for a Kelly and Alex spinoff. I don't know, I'm just saying rooting for it... You didn't see Kelly and Alex ride off into the sunset but hop onto their bikes to go save other people, Esme would love that. I'd love to throw that around and get that trending," Leigh explained. "I would honestly really do it in a heartbeat. I love Alex and everything that I got to build with her and how I grew as a person and the love that I have for my family is love that I was able to embody through her. I'd absolutely love to put that suit back on."

There are presently no plans for Supergirl, Lex Luthor, Sentinel or Guardian to appear in Superman & Lois, which is currently airing its second season on The CW.

Source: Ultimate Crisis convention, via Twitter