Thanks to KSiteTV for bringing this to our attention
The following paragraph is taken from the Dec 5 edition of EW Magazine.
Later in the afternoon at his other office on the Warner Bros. lot, Berlanti meets with fellow producer Ali Adler and Oscar-winning costume designer Colleen Atwood to go over looks for their upcoming revamp of Supergirl. The show will follow 24-year-old Kara Zor-El, Superman's cousin, and with a twist that that could melt fanboy brains,
Berlanti says it's possible this Supergirl could enter the worlds of Arrow and The Flash.
