With Insights being discontinued (which I am very disappointed about), it would be nice for dashboards to incorporate some elements of insights. Specifically:
-The ability to create relationships between different layers based on a common field such as unique ID to enable cross filtering between layers.
-The ability to filter heat maps that re-render when filtered based on a specific category (currently heat maps can filter, but don't re-render which makes dashboards pretty useless for analyzing density trends across categories).
-I would also like to see more of a drag and drop interface where I can upload data into the dashboard and drag and drop fields into a map instead of having to make so many web maps and then link them to the dashboard. It clutters our organization's content so quickly.