Saw Elysium today and really enjoyed it (despite considerable violence factor). It is set in 2154 and I was struck by the fact that people in the film dressed basically the same way they do in 2013 (except maybe the materials are more futuristically engineered, but this is hard to appreciate on video). There was some interesting body modification but the outfits were not particularly space age.
If you were doing costumes for a movie set 140 years in the future, would you keep clothes low key or try to predict future (waaaay in the future) trends?