Here is some info received from the Microsoft SQL Server team regarding the planned updates;
- SQL Server 2008 SP2. Microsoft targets release in Q3/CY2010.
- SQL Server 2005 SP4 release is planned for Q4/CY2010. Extended support for SQL Server 2005 will be available through 4/12/2016. Please see http://support.microsoft.com/lifecycle/ for specifics.
Latest CUs (post current Service Packs);
- SQL2005: SP3 CU#9 (http://support.microsoft.com/kb/980176/en-us)
- SQL2008: SP1 CU#7 (http://support.microsoft.com/kb/979065/en-us)
Note: Install current Services Packs prior to latest CUs.
Current Service Packs;