And one more idea. 
As I have already written here (Promote Templates to a first class Item Type - #2 by silvio), it would be nice if you can manage the templates, just as it happens with the notes. I think this is also possible as a plugin. What do you think?
At the moment the templates are stored in the filesystem and are not synchronized without the user taking precautions. Now the idea was to include the templates in the notebooks.
I imagine that each note can be used as a template by selecting "use as template ..." with the right mouse button and after copying the special template fields are automatically filled.
Unfortunately this option is missing in the cli application.