It appears that DC is developing a new Supergirl series tying into CBS's hit television series of the same name. Listed on DC's booktrade distributor Edelweiss (as well as Amazon), Supergirl will be one of DC's digital-first titles like the recent Legend of Wonder Woman. Here is the description:
SUPERGIRL: DIGITAL FIRST VOL. 1 ties directly into critically acclaimed Fall 2015 hit television show Supergirl, continuing storylines as they appear on the show.
Kara Zor-El landed on Earth after many years stuck in en route from her now-destroyed home planet Krypton, having followed in her famous cousin Superman's footsteps. Upon arriving, she was taken in by the lovely Danvers family and taught to hide her un-Earthly powers from sight. As the world falls in love with her super hero cousin Superman, Kara starts to feel the urge to embrace her powers, especially when her powers can save someone she loves.
But does National City want a Supergirl? Is the world ready for another super hero? And what other-worldly consequences arrive once Kara Danvers reveals her true self? Find out in the stories between the episodes in SUPERGIRL: DIGITAL-FIRST VOL. 1!
This collected edition is advertised for release August 9, 2016. If DC follows their current release window from serialized debut to collected edition, this Supergirl series should debut some time in early 2016.