Office 2007 SP2 will be release between February and April of 2009! There will be more information soon from the product groups about what will be improved.
From the Office blog:
To be fair, this is not the first time we have talked about SP2. Several months ago, we announced that we'll be further demonstrating our increased commitment to interoperability by including support for Open Document Format (ODF), XML Paper Specification (XPS), and Portable Document Format (PDF) in SP2. In addition to those file format additions, some other highlights that you'll find in SP2 include:
For Office Desktop Programs:
- Improved Outlook Calendaring Reliability
- Improved Outlook Performance
- Enabling Object Model support for Charts in PowerPoint and Word
- Improved cryptographic functionality by supporting all cryptographic algorithms offered by the operating system
- Improved functionality in Excel's charting mechanism
- Ability to ungroup SmartArt graphics (and as a result, the ability to add animations to them in PowerPoint)
- Ability for Visio to export UML models to an XML file compliant with the XMI standard
- Tool that enables the uninstall of Office client Service Packs
For Servers:
- Performance and manageability improvements to variations in Enterprise Content Management (ECM) including STSADM commands for repairing links between source and target pages
- Improvements around processing status approvals from Office Project Web Access into Office Project Professional 2007
- Improvements to read-only content databases and index rebuild timer jobs in Windows SharePoint Services 3.0
In the coming weeks, individual product teams across Office will begin updating their blogs and highlighting some of the specific work that they've included in SP2. You can find the links to some of the blogs at the end of the post.