Customers that haven't upgraded to Windows Server 2012 are either living in denial or under a rock. Those that don't migrate off Server 2003 face a range of consequences from security issues ...
R2 also added storage tiering (see HSM) and Workplace Join, the latter enabling user's laptops and mobile devices to function in an Active Directory domain. See Windows Server Essentials.
Thank you, vNext... and yes, there are plenty of updates to keep you busy Windows Server 2025 is officially generally available with some substantial changes for administrators including useful Active ...