Without any doubt, the introduction of events in NAV 2016 is one of the most exciting improvements.
For more information about events, see: Introducing Events on MSDN.
A complete list of all available events is published here: Get Started with Eventing
And of course you can expect a lot of blog posts around this topic with best practices, lessons learned, etc.
But what if you are missing certain events? You can create your own events of course. But what if you feel that a certain event should be available in the base product?
Here is your chance, Microsoft want to hear from you. They actively ask you to provide feedback on events and to send in suggestions for new events. See this page for more information about how to send in feedback and new suggestions: https://blogs.msdn.microsoft.com/nav/2015/10/15/integration-events-in-microsoft-dynamics-nav-2016/