One major mistake in canceling Supergirl could be easily fixed by giving Nia Nal/Dreamer (Nicole Maines) her own spin-off show. The Arrowverse's Supergirl proved to be a huge leap for The CW's shared DC universe, introducing not only Kara Zor-El/Supergirl but a number of other iconic DC chracters, too, including Tyler Hoechlin's Superman and Jon Cryer's Lex Luthor. One other character introduced is an original creation for the show: Nia Nal, AKA Dreamer.
Maines' role on the show was groundbreaking, as she was the first transgender superhero on television. Nia Nal is a Naltorian-human hybrid, and possesses the powers of her family. An ancestor of Nura Nal/Dream Girl, the pair share the same power set. Being an original character for the Arrowverse, Nia Nal not only broke new ground with regard to representation in superhero media, but furthered the status of The CW's universe as more innovative than other superhero adaptations. However, Supergirl's cancelation put an end to Nia Nal's live-action arc, and though the character now features in DC comics, the Supergirl TV series ending proved to be a blow to representation of transgender people in the media.
Related: Why It's Still A Problem For Cis Actors To Play Trans Roles
However, this issue could easily be fixed by giving Dreamer her own spin-off show within the Arrowverse. As she was one of the Arrowverse's most interesting original characters, and has inherent links to other DC heroes, continuing Dreamer's story after Supergirl's ending could easily be achieved by giving her a show of her own. This would allow for the continuation of the incredibly positive representation of a transgender hero in mainstream media, and also provide a more in-depth look at a fascinating
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