Microsoft System Center 2012 R2 Preview is now available. You can download it here:
http://technet.microsoft.com/en-US/evalcenter/dn205295.aspx?CR_CC=200142594
Here is an article about some of the new features.
http://myitforum.com/myitforumwp/2013/06/25/whats-new-in-system-center-2012-r2/
