I have been working on another rewrite but of course progress is slow so I can promise anything but if I get it up  running thousands of subtemplates can be expected to to become redundant  Ive already started deleting many  One set of subtemplates Im currently attacking are the ones for slashes eg    three different ways of getting that useless slash  Basically though pretty much anything that isnt used is up for deletion  Perhaps you could use the what links here and if a subtemplate is hardly used or not used at all on this wiki you probably dont need it  There are hundreds thousands of pages for options that nobody has ever needed  This also might be useful WikipediaDatabase reportsUnused templates  WikipediaDatabase reportsUnused templates