Here’s the scoop from a face to face with an anonymous source from Apple. Unlike the new iPad, the Macbook Pro refresh will stick to the Job’s Doctrine and get a slimmer design. It will still adhere to the overall aluminum unibody aesthetics of others in the Apple family of products but get a thinner profile by ditching the optical drive. In it’s place will be a sort of dual storage setup. Part of the Macbook Pro will have a smaller SSD (Solid State Drive) and the other will have a user removable/replaceable standard hard drive. All displays will be upgraded to Retina-class.
I will update as more information is revealed.