Malte,
This idea does not get rid of acs-templating at all.
First off, if anything like this gets done, its totally optional.
My idea is to combine content with a template and build an adp file that will reside under the pageroot.
It would save a database hit to determine the content and template to apply from a content management system. By rendering an adp, you could use includes in the rendered document to include dynamic elements in addition to the main content.
This could be more useful with cobined content types where a page consists of several content items.
I don't see this as replacing application pages, although it might be possible.
