I've read some stuff about a template system planned (or already being implemented) for 1.3. Since I'm not quite sure what that relates to, here's what I would find useful:
It would be great to have per-category templates, where people could write an opening/closing paragraph and assign it to a certain category (e.g. an introduction, explanation, disclaimer) so it will show automatically up with all posts/article of that category.
Not sure if this is already being done - if it is, props for thinking of it (cool feature!) - if it isn't, then this is an official feature request! :)