I can then import the latest version of my 'Project' template into any page using the live-template macro, allowing the data specified above to be edited:
{live-template:Project}
Even better, if I'm going to be doing this often, I can add a link to the general 'Projects' page which will create a new page based on the 'Project' template automatically using the add-page macro from the Linking Plugin:
(+) {add-page:template=Project|live=true}Add a new project{add-page}
Specifying 'live=true' will ensure that the created project page will always look up the current version of the 'Project' template. Otherwise, if you changed the template, you would have to also change each page the template is based on. Essentially, it will generate the {live-template} macro described above for you in the new page.