The new Dedicated Service Descriptions have been updated here - http://technet.microsoft.com/en-us/library/jj879309.aspx. These Service Descriptions for Dedicated have been updated with features and capabilities of 2013. They are no longer independent Word documents; they are being managed out of TechNet just like the multi-tenant service descriptions.
Additionally the “Microsoft Office 365 ITAR-Support Service and Network Descriptions” have been updated are located here - http://www.microsoft.com/en-us/download/details.aspx?id=23910.
I will provide some details soon about some of the important updates you should know about with Dedicated….