Superman was deliberately kept hidden from journalists who visited the set of Justice League, so a new look for the Man of Steel is pretty much a certainty. This fan-art offers up one very cool possibility.
Superman Black Suit, Resurrection Confirmed in Justice League Apparel? -- A new listing for a Superman hat further teases his iconic black suit in Justice League as well as possible details on his resurrection in the movie. -- http://movieweb.com/justice-league-superman-black-suit-resurrection/
Superman's Black Suit Revealed in New Justice League Video?
Superman's Black Suit Confirmed in Justice League Toy Leak? -- A new Justice League action figure check list offers a first look at Superman in his black Superman suit, but will it appear in the movie? -- http://movieweb.com/superman-black-suit-justice-league-movie-action-figures/