It’s not likely to happen because NDSP has said since the beginning they wouldn’t be offering that sort of individual storage, only the main all-in-one backup file (either on the cloud or on your computer)
Some of us have made multiple accounts; this makes it possible to save another whole QC’s worth of content on the Cloud. It’s not convenient, but it’s an option at least
This is one of the factors discouraging Content creators/vendors- the process and storage capabilities make it VERY difficult and inconvenient. Maybe this is why there’s no Marketplace yet?