WB Eyeing Hailee Steinfeld and Elle Fanning to Play Supergirl

WB is searching for a female director to helm it.
Supergirl will be an origins story. Kara Zor-El’s backstory will be similar to the comics as well. 
It will be part of the rebooted continuity of the DCEU, alongside The Batman.
Hailee Steinfeld and Elle Fanning are being eyed to portray Kara Zor-El in the franchise. 
This doesn’t mean that these two are the frontrunners.
The studio is just keeping a watch on these actresses for the time being.