Lindsay Lohan is angling to play Ariel. Other than being a redhead, I think she's completely wrong for the part (I'm trying to be nice.)
Apparently Chloe Grace Moretz was cast, but dropped out. I think if Millie Bobbie Brown from "Stranger Things" was about 5 years older, she'd be a good choice. Dove Cameron maybe? She was in The Descendants, so she's already known to Disney. What are your casting thoughts?
I think Emma Watson is a perfect choice for Belle, btw, and I can't wait to see the live action "Beauty and the Beast".