A Dutch website called bouweenpc.nl claims to have sources reporting that Microsoft has completed the first public beta of Office 2013 and it will be released sometime next week. Microsoft has already showed a live public demo of the Windows RT version of Office 2013 at the TechEd conference in Orlando, hinting that the new version of the productivity suite is close to finished.
While Windows 8 has seen three versions offered to the public so far for download, there have been no public versions of Office 2013 offered. So far, the only version of Office 2013 to be released was a Technical Preview given to some developers and partners in January of this year.
At this point it's still unclear what Microsoft will call the productivity suite. Microsoft typically sticks to Office and year date for its products, but the internal codename for the software has been Office 15. Office 15 is how Microsoft has referred to the software suite when speaking about it, we assume Office 2013 will be the official name. Microsoft will include a version of Office on every Windows RT tablet sold, including its own Surface tablet.
The final version of Office 2013 is not expected to launch until Q1 of next year.