If you are interested to investigate new feature inside SCCM 2012 R2 you can take a look to the following:
Powershell – What’s new in ConfigMgr 2012 R2
ConfigMgr 2012 R2 Preview – what’s new?
Consider that with SCCM 2012 R2 it's possible:
1. define Distribution Point in Branchcache mode
2. We get a new node for Windows Intune – Extensions.
3. With Windows ADK (Assessment and Deployment Toolkit) 8.1 we now have WinPE 5 Boot Images available.
If you want to know how to import WinPE 5 into ConfigMgr 2012 SP1 CU3
(which now supports Server 2012 R2 and Win8.1), look here: www.niallbrady.com/2013/10/09/how-can-i-manually-add-winpe-5-boot-images-to-system-center-2012-configuration-manager-sp1-cu3/
[original Article http://www.david-obrien.net/2013/10/18/findings-system-center-2012-r2-configmgr-whats-really-new/?utm_source=feedly]