Nano Servers are coming!
Nano Server is a remotely administered server operating system optimized for hosting in private clouds and datacenters. It is similar to Windows Server in Server Core mode, but markedly smaller. Also, there is no local logon capability, nor does it support Terminal Services. It takes up far less disk space, sets up significantly faster, and requires far fewer restarts than Windows Server.
More information can be found here:
Getting Started with Nano Server
Deploy and Manage a Nano Server