One of the most powerful features in Power BI is the natural language based Q&A feature. It allows end users to pose questions and receive reports, dashboards and answers using natural language queries. The Q&A query makes suggestions to the end user on what to ask as well as automatically displays the appropriate chart or graph based on the type of data. End users can also pin any question to their dashboard.
The Q&A support is going to be extended to on premise data sources through the Enterprise Gateway. Starting with SQL Server 2016 Analysis Services Tabular Models, now in preview, end users will be able to use the Q&A feature to access data on premise in the same as currently supported with cloud data sources. Additional support for on premise data sources such as SQL Server, Oracle, SSAS, etc. is coming soon.