A leaked Microsoft roadmap shows an early 2013 release date for Microsoft Office 15.



From PCWorld:

The roadmap was discovered by Maarten Visser, CEO of SharePoint and mobility startup called Meetroo, on the Microsoft Partner Network. Visser posted screenshots on Twitter, where they were picked up by ZDNet's Mary Jo Foley. The roadmap was published last December.

  Leaked: Microsoft Roadmaps for Office 15, IE10, and More