Updated models with AMD graphics options expected in early 2017.
Apple Quietly Bumps 15" MacBook Pro Speed, 256GB SSD Option, and New Keyboard
Apple has quietly increased the processor speed of their mid-range 15" MacBook Pro from 2.53GHz to 2.66GHz and the top-of-the-line model from 2.8GHz to 2.93GHz.. The change is unlikely to be noticed in day to day operation but is a distinct modification from the original release. They have also begun offering 256GB SSD upgrade options for the 13" aluminum MacBook and 15" MacBook Pro as well.
Meanwhile, forum user MacGeekDC noticed that Apple now offers a wired keyboard without the numeric keypad. This option is now available for $49.