i know it was not announced during WWDC but does it seem likely that they could add the control center by the time yosemite is released in the fall? there has been code found in the first DP1 containing the control center.
http://9to5mac.com/2014/06/10/apple...ple-menu-for-control-center-in-os-x-yosemite/
http://9to5mac.com/2014/06/10/apple...ple-menu-for-control-center-in-os-x-yosemite/