Hi All :
System Center 2012 Configuration Manager RC is coming , you can through this link to download RC image : http://www.microsoft.com/download/en/details.aspx?id=27841
About official document please access this link : http://technet.microsoft.com/en-us/library/gg682129.aspx
I found more changed and improve in RC , like fully support SQL Server 2008 R2 , and integration System Center 2012 Endpoint Protection (Formerly known as Forefront Endpoint Protection).
Some snapshot provide to your reference .
Integration Server and Client mutil-language :
Need open or setting FW 4022 port for SQL Server Service Broker to replicate data between sites
RC Version :
Adjusted console workspace :
Advanced security mode ! need to config certificates.
System Center 2012 Configuration Manager deployment document will publish when RTM.