I would like the ability to sell digital content that has not been created yet.

For example.

1 User adds product to cart. (one user deluxe report)
2 On payment form they specify what the report should be written on. (dogs)
3 I get a e-mail saying payment processed and requested topic. (dogs)
4 I created the report and add it to the customers account as a download
5 Drupal sends a notification e-mail the report is ready to the customer.