"Microsoft already has updated OneNote and Outlook (available in limited preview form) available for the Mac. Today, March 5, the company is delivering refreshed public previews of those two apps in addition to the first public previews of the 2016 versions of Word, Excel and PowerPoint, and is making all five apps available to anyone running Yosemite (Mac OS 10.10).Microsoft delivers first public preview of Office 2016 for Mac | ZDNet
The Office for Mac 2016 preview is available for download from Microsoft's Office.com preview site, and can be run alongside Office for Mac 2011."
Thursday, March 05, 2015
Microsoft delivers first public preview of Office 2016 for Mac | ZDNet
Extent to which it's closer to Windows Office feature/function parity still tbd