Improve Reporting Services (or converge it with Power BI). SSRS hasn't been improved very much in the last versions. For many uses cases SSRS still offers features such as export to several formats (...
Allow the plug in of R graphics and visualisations. Try to take the following project (https://rgraphicsdevice.codeplex.com/documentation) and offer it out of the box. Allow other programming models such as R or F# (not just SQL) for report data extraction and manipulation.
