The Microsoft Dynamics GP 2016 release date is set for early spring. Here is some information that has already been released on the new features:
Microsoft Dynamics GP 2016 HTML5 Interface
This eliminates the need for the Silverlight interface for the GP 2016 Dynamics Web Client. The HTML5 web client is expected to improve performance and navigation in the Cloud.
The new interface is expected to cover the entire product in its initial rollout.