SQL Server 2012
The next version of SQL Server will be released in the first half of 2012.
Microsoft has confirmed this release at the PASS Summit on October 12th.
Although Microsoft was yet to announce a specific availability deadline for SQL Server 2012.
Source: SQL Server 2012 Launches in H1 2012, Now in the Final Production Stages
Microsoft already released a Developer Training kit for SQL Server 2012.
This training kit is designed to help you learn how to develop SQL Server 2012 database and BI solutions.
SQL 2012 Training Kit: SQL Server 2012 Developer Training Kit