The Journey
So the main issue is going from where we are now to this new model of Microsoft Dynamics 365. Realistically this is only an issue for Microsoft and partners, in terms of making it happen and marketing the products. Microsoft’s marketing is a little ahead of itself, focusing on the Dynamics 365 message and dropping the marketing on NAV. We have put together the following diagram which is the latest information regarding the future of the products (click to enlarge):

Currently Dynamics 365 for Finance and Operations Business Edition is limited to a financial management package, but over the next year the full NAV functionality will be added to the solution, in time for the products to converge in the Autumn of 2018. This is being called "Project Tenerife" by Microsoft.