Great to see such a lively item on the ideas exchange! I am putting this under review and will be exploring options with the dev team here.
Do you feel that the Preview environment provides you with what you need, or are you after something more here?
We already have We already have a noItemsContent on the Listview that shows if no Items have been created - please take a look at the Listview information in NPM.
Was there something different to this that you needed?