I once wondered how Superman's costume has changed since its inception---and if those same trends continued, what they would look like now.
Originally, Superman's s-symbol was relatively small on his chest, almost like a crest.
Also, originally, the boots were nonexistent or sandals with straps crisscrossed around him (sort of like Thor's boots, only without the essential boot at the higher part---they were crisscrossed around his lower leg.
So, let's imagine it going in the OTHER direction...
Supeman's s-symbol would expand to fill his entire chest, down to his belt, with the corner of each at the top where the cape comes up, and the lowest angle just touching the belt. His triangular symbol would fit well in an overall chest symbol...think the triangular chest costume of the original Ultraman of the Crime Syndicate as shown at
http://www.supermanartists.comics.org/silverage/CrimeSyndicate-JLA29.JPG only with a huge S-symbol filling the triangle.
And the boots would become even more pronounced, coming up to mid-thigh or higher, like Colossus' boots.
I dunno if it would be a change I'd approve of...I tend to like the original, especially with the smaller s-symbol---but it WOULD be an interesting variation of the costume, and might be an interesting costume for, say, a far-future descendent of Superman's to wear.---Al