Today is the worldwide release of Office 2016 for Windows and there are details in this Microsoft blog post on the new features that you can expect: http://bit.ly/1NRcRzd.
Office 2016 for Mac is also available as a one-time purchase for the first time – since its launch in July it has only been available to Office 365 subscribers. And, as if that wasn’t enough, 2016 versions of Project and Visio are available too.