I’ve heard others make the argument that FF6 should never be remade, since it’s highly possible that once those restrictions are lifted, a ‘fuller’ version of FF6 might not live up to the standards set by the SNES version. I personally would like to see a remake -anyway-. Though after Square’s latest offerings, I don’t exactly have a lot of faith in the writing team for making a noteworthy improvement on the original.

Specifically addressing your conclusion on what the Theme of FF6 is, I mostly agree. It’s about making an ensemble cast, and even lesser characters like Setzer and Strago seem to fit your idea. Setzer himself seems all about having a ‘zest for life’ instead of a more specified reason. This is possibly why he was so quick to fall into despair in the World of Ruin (Celes watched Cid die, Cyan still wasn’t over his family, Strago thought he lost Relm, everyone else wasn’t really ‘in despair’). He didn’t really have anything to ‘fight for’. I find it interesting that FF6 seems to show that living life just for the sake of enjoying being alive isn’t a good enough reason. Gotta live for the sake of others, it seems.