Possibly. However, if I'm a studio executive, I'm not sure I would spend the money on such a sequel to a film with such a massive budget that took this long to regain the money. Especially one that was so poorly reviewed. Typically, comic book films are not your stupid action movies or your brainless comedies (Scary Movie and others) where quality doesn't factor in to it, especially in a Post-Dark Knight world. My fear would be that it was so poorly reviewed that the public isn't going to "trust" another Green Lantern movie. I mean, it wasn't universally reviled, but it was pretty damn close.