At Comic-Con in July, Rodriguez said that funding was in place and that shooting would begin once the cast and script were locked down. Miller has apparently sorted out the first draft of the script and no less impressive a writer than William Monahan, Oscar-winner for The Departed has now been drafted in to work on it further.
There is plenty of Sin City material to populate another film, whether utilising further stories for previous characters (like Mickey Rourke’s Marv), or bringing in hitherto unexplored strands. Hopefully this won’t be another false dawn and we can get back to Sin City some time soon. Monahan is said to be reuniting with Scorsese for a remake of 1974’s The Gambler and has also scripted Oblivion, a hot-hot-hot sci-fi project to which Tom Cruise is now attached, but he should be able to find ample time to have a bit of a tweak with Sin City.