The SQL Server 2016 release date is June 1, 2016. Among the new features everyone is talking about is "R Services".
Below is a quick reference of links related to "R Services":
Editions and Components of SQL Server 2016
Differences in R Features between Editions of SQL Server
In-database Advanced Analytics with R in SQL Server 2016
There are additional links at the bottom of this article including this video:
SQL Server R Services Tutorials
Installing Packages in SQL Server R Services
SQL Server 2016 features: R services
If you're interested in Learning R, there's plenty of books out there too.