The article about it.
I doubt it will be made for some reason, but it's interesting. If Tim makes it, I imagine Helen is playing Maleficent, and, of course, most likely Depp is in there somewhere. Ooooh Tim.
It is true Wicked turned out popular...
The article mentions exploring Ursula and why she was banished. The extended Poor Unfortunate Souls says she tried to overthrow Triton once already. Of course, that didn't make it into the movie and could be changed. I like that left out as it makes it much less believable Ariel would go to her.
Anyway, villains... deserve their own movies?