Thank you very much for your prompt reply Andrew! That's good to know!
In our case, we would like to enable use of MapImageLayers in the visual, and make it possible to:
- Select a record by clicking on the map (using identify operation in the background), causing the other visuals to update accordingly (using a join across the datasets).
- Zoom to a feature when the corresponding record is selected in other visuals such as a table.
By supporting MapImageLayers it is possible to show lots of data simultaneously, reuse all of our existing mapservices, and our symbology. Not sure yet if I will manage to build this kind of solution, but I want to give it a try.