They were announced back in June: http://www.businessinsider.com/apple-imac-pro-space-gray-keyboard-mouse-accessories-wont-be-sold-separately-2017-6 http://www.

They were announced back in June: http://www.businessinsider.com/apple-imac-pro-space-gray-keyboard-mouse-accessories-wont-be-sold-separately-2017-6 http://www.businessinsider.com/apple-imac-pro-space-gray-key...