WB is already is thinking that way after the success after Dark Knight.From what I heard they already think the next Superman movie should be "grim and gritty".
Yeah, that's my point. A really successful WM movie will just cement that thinking.
They did this before. When the 1989 Batman was a big hit they did a "Flash" TV show that was as much like Burton's Batman as they could make it: rubber suit, shot at night, origin motivated by revenge, Danny Elfman music, even a recreation of the "batwing against the moon = chest logo" shot, only with a lightning bolt in the place of the batwing.
