Microsoft recently announced that Office 2016 rollout will start from September 22nd. Also, volume licensing customers can download Office 2016 from the Volume Licensing Service Center starting October 1st. To improve the upgrade and installation experience for Office 365 subscribers, Office team have made changes to how the 2016 apps are updated moving forward. Ina addition to that they are also delivering new tools and resources to help IT Admins prepare, deploy and manage Office.

Source: http://microsoft-news.com/office-2016-rollout-begins-september-22/