A new roadmap for Microsoft Dynamics GP was released at GPUG Amplify last week which shows the next three releases:
The next version, due for release in 2017 H2 (most likely December) is Microsoft Dynamics GP 2018 and includes updates to Workflow (first time I’ve seen references to Workflow 3.0 and 4.0), Finance and HR Optimizations, Doc Attach, Power Suite (?) and top new features requested by customers.
I believe there is still time for you to get your suggestions onto Microsoft Connect.
If you see posts of the slide presented at GPUG Amplify you’ll notice that the 2016 and 2016 R2 columns were identical; the one posted above does not have this same issue.