Even if I don’t agree that dashboards will go away entirely (I see value in them for giving quick overviews and access possibilities), I still liked your idea of the system actively prompting the user in a dialog format to look at an information rendered from analytics data.
In a digital workplace context this could be a quite valuable component, for example for telling owners of virtual workspaces about activities in their spaces. (I mentioned this with a reference to your example in the following article: https://www.linkedin.com/pulse/can-conversational-interfaces-cognitive-computing-bring-moehren)
I’d love to see such a dialog box on a digital workplace dashboard. Let’s see.