Why after so many years is this not addressed?
You are Recording a Band 5 Song Session. Or working on a MIDI based orchestral composition
After Song 1 is done the project setup and mixer levels etc are nicely in place so you decide you want to save a Template
However Cubase keeps all of its links to Audio files and MIDI data in tracks when you save this Template
Now start a new Project using this new template. The project opens up with all settings, MIDI tracks etc but also all Audio files. But what you really want is a BLANK canvas. So you decide to select all and delete and then go to the Pool and Delete Thrash.
Go back to Song one in the session and load it. All of your audio is now deleted forever.
Surely, as in Protools, there should be an option when saving a template to include or not include media at this stage. Minimal programming effort involved.