CBS is developing a Supergirl tv show. The pilot was written by Ali Adler (No Ordinary Family) and Greg Berlanti (The Flash, Arrow), who will also be executive producing. Here are some casting breakdowns/character info:
Kara Zor-El/ Kara Danvers: Caucasian female, 22 - 26 to play 24. Kara arrived at Earth at the age of 12 where she was taken in by the Danvers. Kara is forced to use her powers during an unexpected disaster.
Alexander "Alex" Danvers (Kara's foster sister): Alex is Kara's gorgeous, brilliant, science-minded foster sister who is both jealous and fascinated by Kara's powers. She has learned everything she could about alien mythology and now works at a secret government organization.
Cat Grant: Female in their 40s, open ethnicity, to play founder of Catco, a media company. Kara will work as the personal assistant of Cat, who is described as "JLo by way of Anna Wintour"
James Olsen: late 20s - early 30s, open ethnicity. James is the smart and attractive photographer of Catco. Though an alpha male, Kara has a crush on him because of his 'salt-of-the-earth' nature.
Winslow "Wynn" Schott: 20 something techwhiz who works for Catco and is unaware of his own potential and Kara's secret.
Hank Henshaw: Male in their 40s. Hank works at the CIA and is head of the Department of Extra-Normal Operations. He is on high alert when Supergirl appears.
source: comingsoon, 2 - rewritten by me
it sounds like flash/arrow but genderbent + separate universe?