(Kidding, of course...)
I think it's unlikely that this site can be monetized, so I don't have my hopes up. The clearest direction would be to move up the "backend-as-a-service" spectrum into Headless CMS land (which I have a diagram for here: http://alexzirbel.com/npoint). But I think it would be hard to balance that with the quick setup / unstructured data nature of the project.
One feature (maybe a premium feature) I'd love to add is form-based data editing. Theoretically you could generate the right kind of input fields (text, date, number) from the JSON schema and expose that as alternative editing interface. That would make the tool more like a CMS.