Remote possibility: Would more front-page featured pictures like today's:
http://en.wikipedia.org/wiki/File:MARTAKIS1.jpg
perhaps entice at least some women to edit who aren't otherwise doing so? Or at least even out the Wikipe-tan effect? Cf. this album cover: http://en.wikipedia.org/wiki/Frampton_Comes_Alive! and its purported effect on the sales of said album (not mentioned in the article, but maybe it should be).
Just a thought; else, hold that thought.
Daniel Case