Microsoft is targeting a February 2009 date for the release candidate (RC) version of Windows Vista SP2. There have also been numerous reports that Microsoft is shooting for an April 2009 release date for RTM.
Microsoft has been very quiet relating to the release dates but sources close to Microsoft appear the dates specified are strong. The new service pack will include Windows Search 4 along with Bluetooth wireless support, support for the new VIA 64-bit CPU and lots of security fixes and compatibility updates.
Among other features there will be the ability to record Blu-ray media natively in Windows. A more simplified Wi-Fi configuration will be presented by Windows Connect Now (WCN) and in addition, improved support for resuming with active Wi-Fi connections.