My thought is to be able to create a Service Catalog that is an Incident, and it will allow you to create other Incidents based on that. Right now it looks like this feature is only available for Problems, and for the Service Catalog you can only create tasks.
|What problem will this feature solve?:|
The problem with Tasks is that you need to wait until all the tasks are completed before the ticket can be closed. When you depend on other departments the tickets can sit out there forever. In this scenario you can generate separate tickets, assign them to the appropriate team, and then each one can be closed as needed.