Denny's SQL Secrets When Should You Create New SQL Server Indexes? Here's how to spot when new indexes are needed to improve performance. By Denny Cherry 04/11/2014 ...

When the problem is on the back end, you can resolve blocking problems by ensuring SQL Server creates the appropriate indexes on your databases. You may also want to perform query tuning as necessary.

Non-clustered Columnstore Indexes are also getting some enhancements in SQL Server 2016. The most notable of these enhancements is the ability to be updated.