I guess it would depend. If the studio wanted to clean house from Famuyiwa, and how much influence he held in her casting. It happens, there is no guarantee that the studio won't push her off because there is footage shot of her, or contracts signed. I'm not saying she'll be booted, but she isn't safe either.
I have my own issues with Johns, but creating a tonally diverse DCEU I believe he can do. not like I won't see these movies anyway. so got myself to blame.
Cause when I think embodiment of hope, I think Morrison. but maybe I'm just out of touch with the grim/gritty DCEU where all our heroes must have scars on their wrists.
Please don't. Aquaman is the only one I'm truly excited about thanks to Wan.
Side point, please don't try an ape Morrison. I love him, best run ever on Animal Man. But Christ, Morrison can barely pull off Morrison half the time. it's like DC's love fest of Miller and Moore. (Yes, I know it's stupid BS 4chan. still makes me cringe.)