Currently, The new editor for templates does not provide a way to provide a good description of what information should be filled out for a given variable.
Placeholder text macros do not display their content, and only the variable name can be used to try and offer a description.

I would like to propose the option to either:
1. render placeholder text macro contents when entering the values for variables when creating a page from the template.

2. Add the option to provide a description for a variable that renders when the user is entering the values for the variables.