Out of D23 yesterday, we learned a lot about Pixar's upcoming slate: big details on their 2 new films, as well as learning about a particular scene from Brave, but we also got a lot more light upon their first film in 2013, Monsters University.
Monsters U. is a prequel to the 2001 original, Monsters, Inc., set years before the events of that film, and described by Pixar and Disney CCO John Lasseter as an "animated college movie", as such the character designs had to be suitably adjusted. Both characters are said to be 18 in the film, so changes were needed, but (as you can see), the characters still look like the ones we know and love from Monsters, Inc., but in a slightly different light.
Mike is shorter, freckled, has smaller horns and is sporting a retainer.
Whereas, Sulley is thinner, hairier and shaggier.
The Pixar Times also reports that several actors were announced for the film, obviously John Goodman and Billy Crystal reprise their roles as Sulley and Mike respectively, Steve Buscemi also returns, to voice the villainous Randall. In terms of new talent, Dave Foley returns to Pixar (after previously voicing Flik in A Bug's Life) to voice a new character, and Peter Sohn (director of Partly Cloudy and co-director of the new dinosaur film), who voiced Emile in Ratatouille, also lends his voice to the film; Joel Murray and Julia Sweeney also star.
For more information and over 20 character images from the event, head over to The Pixar Times.