it sounds like a nice idea to provide some include shortcuts that generate relations of certain types automatically. One could use e.g. {{image album/name}} to include the image and to create automatically a link of the form (page, 'image', image_id). later it is possible to query, what images are used in which pages.... Just now, i made a small adp file for including wiki pages in wiki pages. Here one, could think about a 'wiki-inclusion' link. What's needed is a better way to communicate between different inclusion layers.
It should be certainly possible to create a different type of widget page with a different edit-form (without the rich text editor) that uses as well a differnt rendering function. The current infrastructure should already be able to support this..
