Reposting my ideas of a slightly altered super suit.
The idea story wise is to have the outfit reflect Superman's mourning of all the losses during the battle of Metropolis, something along the lines of the colors he wore after 9/11 or in Kingdom Come. The nod to the Fleisher shield is obvious as well.
Actually even though I really like the MoS suit I wouldn't be against a complete change of suit either. I wouldn't mind seing him ditch the Kryptonian uniform in favor of an outfit that would display his human heritage, help him gain people's trust, and something he could actually hide under civilian clothes.