Have a look at the article by Julia White, General Manager of Office 365 Technical Product team…. https://blogs.office.com/2015/09/10/admins-get-ready-for-office-2016-rollout-begins-september-22/. This article contains the “Improvements to the Office Update Model”, “More IT capabilities in Office”, “New events, tools, and resources for Admins”. In addition, don’t forget to register for “Microsoft Cloud Road show” @ https://www.microsoftcloudroadshow.com/cities#register.
Hope this helps.