Interactivity, LIVE while using InDesign - Object States and Buttons that work at ANY time - ala AE 'Essential Graphics'.
There is the potential for InDesign to be a powerful QC authoring tool in our industry. We apply technical charts over the images which designers have created, like pitch/checker-decks. We need many different aspect ratios but repetition of the overlays and much of the info. We previously had over 90 layers the user would need to make visible or invisible - this is tedious and antithesis of good UX.
Essential Graphics in AfterEffects is somewhat close to the idea we seek.
InDesign is ALMOST there with ObjectStates, but these also require layer selection and a chunky workflow.
Wiring ObjectStates to Buttons and Forms is exciting - but does not work in the ACTUAL INDD DOCUMENT - so it's not a solution.
There's so many clever ways to solve the problem by building custom control panels with the Interactivity, but none of that function is available INSIDE OF InDesign - and exporting to EPUB/PDF is useless because we need to drop dozens of images into the pages.
There's a precious chasm that sits between InDesign and XD that could be bridged - find some way of EMPOWERING AUTOMATION, allowing the creation of better/custom UI/UX, which builds better tools for the creators, not just end user product for display.
This is valuable because it extends the function of InDesign to become more of a tool for making tools for others, rather than just a tool to make static, re-baked product.