Supergirl season 6 hasn't kicked off production at the moment. There's no clear indication as to when cast and crew could officially begin filming. Despite these uncertainties, it has been confirmed that the upcoming season will serve as the final installment of the series.

The CW and producers Warner Bros TV and Berlanti Productions announced that Supergirl season 6 will be the final one for the Melissa Benoist -led series. It is the second show from the network's DC Arrowverse show to conclude following Arrow.

The production for the final installment has been delayed due to the current global health crisis. Also, the series is eyeing to start filming at a late date to accommodate Benoist's pregnancy. It has been reported that filming will begin after the actress return from maternity leave.

The upcoming Supergirl season 6 is said to be a long one compared to the preceding installments. The creative team, reportedly, developed the storylines for the last 20 episodes and expected to be longer than most broadcasting series.

There is no confirmed reason as to why the series is ending. But, CarterMatt noted the series is one of the most expensive shows out there. The ratings declined over the past two years, as well. Yet, Supergirl remains to be one of the popular characters on The CW.

Meanwhile, following the announcement, Benoist reacts to the news that Supergirl season 6 will be the final installment. The actress said that she's been honored to play the iconic character. She felt humbled and speechless that the show has an incredible impact on young girls around the world.

Benoist added that the series has an impact on her. She noted that the character changed her life "for the better" and she'll be forever grateful. Then, the actress promised that the series will bring a lot of big stories before it officially concludes.

The final installment will pick up the events that happened in the season 5 finale. The main priority is to tie up some of the loose ends left in the fifths installment. We saw the titular character facing several threats, both new and old ones.

Kara's biggest opponent remains to be Lex Luthor (Jon Cryer). The storyline wasn't properly wrapped up in season 5 as production was halted due to the COVID-19 outbreak. The latter is still a huge part of the story in the early run of the final installment.

After taking on these remaining storylines, the series will move forward with the final chapter. There could be a new Big Bad, who could shake up the entirety of the plot. The new villain might be from the coming book and could be a huge threat to the superhero.

Supergirl season 6 is slated to premiere in 2021 on The CW.