Date: Thu, 23 Aug 2012 15:32:49 +0100 From: Neil Harris
Yes. Absolutely this: in some sort of platform-wide repositry, in the same way that Commons does for images.
This is also a real chance to clean up many of the cross-wiki infelicities that have built up in the old template system.
And coord, citation, and infobox templates are the obvious places to start.
Dont forget {{convert}} that is the most evil template I know of, with many layers of sub templates to mimic printf type functionality.
Richard