Wow. Interesting article.
I'm not sure turning on Superman's 'dark' side is a good thing, nor is focussing a movie entirely on Lex Luthor, as he isn't as interesting as the Joker. Superman has a lot of scope for interesting movies with high action and cliff hanging scenarios.. and interesting villains... while keeping him the hero he is without making him dark and brooding like Batman or pathetic and constantly uncertain like Spiderman. Superman isn't Batman... and I don't think the same formula of 'darkness' works for those 2 great characters.
I do believe they need to rethink Superman after what they did with Superman Returns. I think that movie has almost done more damage to Superman's reputation than Smallville.
*ducks quickly*