I hope it's reliable, too.
At this point, I just can't see WB completely scrapping everything that went into Returns
only to start again
from scratch. Even if Singer doesn't return, I'd expect them to keep much of the design work and cast--especially Routh. Other rumors I've seen point to WB wanting to have a 'loose' sequel to SR
, using the same cast but taking the story in more of a comic book oriented direction.