Re: Should they change the costume for the sequel?
I'm a defender of the trunks, but I just don't think you can bring them back without some kind of reason. Why does someone suddenly decide to don their briefs on the outside? It's fair enough if that always was the costume, but if the trunkless suit was to be modified in this way, audiences would have to contend with the inference that Superman took a long, hard look at himself in the mirror, before deciding that "truth, justice and the American way" were best symbolized by visible red underpants.
What is done cannot be undone, I fear.