Here's a great little collection of Wicked character art created by Disney animator Minkyu Lee, which shows us what the characters would look like in a Disney animated film. Lee worked on films such as The Princess and the Frog and Frozen. These were created by the artist while studying at CalArts and interning at Disney. Lee is a very talented artist and animator who also directed the Oscar nominated short Adam and Dog, which you can watch here. You can read about the artist's thoughts on the importance of creating a visual development portfolio like this and how it came about on his website. I think Wicked would make for a fantastic animated film at Disney, but I believe Universal Pictures hold the rights, and they will be developing a live-action version of it.