In the last week, we have published a new dedicated page that covers DesktopStandard transition and support information:
Why publish this page now? The DesktopStandard Web site will be redirected to this page starting in the next week or so. We needed to have somewhere that customers could land and not have a broken experience.
We have also updated the DesktopStandard section of the Group Policy FAQ: http://technet2.microsoft.com/windowsserver/en/technologies/featured/gp/faq.mspx#ENAAE.
We will be publishing legacy DesktopStandard documentation to the Microsoft Download Center later this month.