Addition of a few geomapping visuals that can allow users to plot geographical data into the visual and analyze the business indiciators would be of great help.
Bringing in a table with the capability to consume hierarchical data and present it in the form of an hierarchical table with variance and all such information would be great.
We can bring in an IDE within the custom visual to primarily improve the application’s aesthetics. Something to leverage on the capabilities of HTML/CSS or to support scripts from other languages too.
In Horizon Chart, an option to control the height of each chart can add value to it. As it could help when there are a lot of members and also reduce the scroll for users.