There is a lot of potential for improvements with using cubes in Spotfire. Here are some functions that I would like to see:
Ability to use on-demand with cubes
Cube dimensions to allow data types other than String (like Dates)
Ability to "Limit data using expression" in visualizations when using data in-database
Enable cascading filters when using data in-database
I'd also like to see improved functionality where I can transform the data. I currently have to export the data as a stdf file and then read the data back in so that I can perform transforms.