By default, we have the "Blank page" template pre-selected.
It would be nice to provide a parameter in order to change the default selection to another template.
The main use case is to allow applications that provide template providers for their entities to reuse the Create step and help the user by preselecting the template.
Another use case would be to change the default template selection depending on the location the Create step is requested (a.k.a the place where the user clicks on create could affect the location and template properties). This behavior could be implemented because since
XWIKI-8759 we have more clearer "creation restrictions" for templates.