I posted this in the other thread, but I think it's more appropriate here. While the studio's statement does sound like a pretty blantant case of monkey see monkey do, I'm actually glad for it. Superman Returns, amongst its many other faults, was corny, cheesy, and all-around impossible to take seriously. A dark Superman could work; my favourite version of the character is the JLU version, seasoned and perhaps a bit world-weary for it, concerned with the dynamic between his power, his notion of justice, and the free will of others. But then, my favourite 'Superman' concept is JMS' version of Hyperion in the Supremeverse, which squarely situates an entity of such power into the realpolitiks of the modern world.
Fictitiously yours, Trent Roman