I'm really hoping one of these types of app builders backed by spreadsheets takes off. Not only will it empower non-devs, it will give devs the ability to proto

I'm really hoping one of these types of app builders backed by spreadsheets takes off. Not only will it empower non-devs, it will give devs the ability to prototype and iterate faster. Toga looks especially well thought out. Are there plans/a path in the future where users can move off of spreadsheets to a relational database when the need arises?