Till-
With template system, I am referring to the mechanism whereby content from other pages in a new template namespace can be transcluded, and keys/ values are assigned by the calling page:
Keep wikipedia simple!
That's what the template system is for -- moving tables, HTML etc. out of the articles and into templates that can be optimized by people who like doing that sort of thing. Other people just have to edit something extremely simple like
|Country table |Name => Germany |____
|Navigation |Next => Dogs |Previous => Cats |____
Regards,
Erik