With such mixed reviews over Superman Returns and where that might leave the franchise for a continuing film, the only thing certain in the Superman Camp is that anything after this would be a Reboot.
I think they painted themselves into a corner with Returns, and while I envision a valid way out of it WB is uncommited to any direction with the franchise just yet.
Obsessed with Film quotes Anne Thompson at WB
The studio is still seeking the right direction. No writers are working on a Superman script. “We’re working on a strategy for DC,” says one Warners exec. “Superman is the trickiest one to figure out.” In fact WB consumer products guru Diane Nelson, who liased with JK Rowling on the Harry Potter series, has been charged with putting the integrated DC/WB house in order.
So it would seem that WB/DC is putting all their ducks in a row before attempting to move forward with anything. The first step of that Was DC Entertainement getting their own film production separate from WB. Probably a wise move considering their competition Marvel Films seems to have the inability to do wrong with their current projected path.
DC has a wealth of stories and characters that deserve to come to the big screen, and yet only Superman and Batman seem to have any real success in that market. Well with Green Lantern getting a lot of buzz and attention, they might be fleshing out that roster which could inevitably lend to a JLA film.
Curious though that WB seem to be unfettered by the threat that the legal shadow of Superman hangs over their heads, as the rights to Supes on Film are at risk if they do not make a Superman film soon.