On Tuesday, the Microsoft Office Sustained Engineering Team announced at their blog that the Service Pack 1 for Microsoft Office 2010 suite will be available in the mid-summer of 2011.
according to the MSOSET Blog:
We are on track for delivering Office 2010 SP1 and SharePoint 2010 SP1 in mid-summer 2011… Changes to Office and SharePoint products are cumulative.
SP1 will update all 40 SKU languages for Office, and update the SKU languages for SharePoint. In addition, 4 Language Interface Pack releases will also be updated: Galician, Basque, Catalan, andSerbian Cyrillic.
The development work is paced but the timeframe for the availability of the Service pack 1 has not been made clear by Microsoft yet.
And as the Windows 7 SP1 has not brought nay specific new feature to Windows 7 but provided a cumulative updates, it seems so the Service Pack 1 for Office 2010 will not bring any new features and will be a collection (cumulative update) of all previously released patches and updates.