Throw the use of presentation channels you can create different views for the same input data (e.g. html, pdf and xml). To further separate content and view I suggest to allow different views for the same presentation channel (e.g. html1, html2). This way you can create multiple views for the same input data.
Example: Press release, "view-channel html1" creates a short version and "view-channel html2" creates the complete version of the same press release
This concept is already implemented by data sources (Datenquellen) but is useful for section templates also.