New concept arts of Rapunzel have been released via the official site of Walt Disney Animation:

(Click on a picture to enlarge it.)

Promo from Disney:
“n this new telling of the classic fairy tale, audiences will be transported to a stunning CG fantasy world complete with the iconic tower, an evil witch, a gallant hero and, of course, the mysterious girl with the long golden tresses. Expect adventure, heart, humor, and hair… lots of hair, when Rapunzel unleashes her locks in theaters for the 2010 holiday.”

Walt Disney’s animated movie Rapunzel is directed by Nathan Greno and Byron Howard. The film is scheduled for a release on December 24, 2010. So I already know what Christmas movie I’ll go watch next year.
:)