I've heard rumors that DC is trying to reboot the Superman fanchise after Superman Returns didnt do as well as they had hoped. Personally I hope they do, as much as I liked Returns I was hoping for them to start the series over, not pick up where Chris Reeves, may he rest in peace, left off.
I thought the fact that they did to to honor reeves was a very noble thing to do, but what they need to do is give Superman a whole new story, they need to change the relationship between Lex and Superman and make it more in depth than just Lex Luthor, Super Criminal vs Superman.