If you were wondering how Luke Skywalker will look in The Force Awakens, we have the answer. (“Chewie… punch it!”)
IMAGE REMOVED BY REQUEST
Note the light color scheme. Now granted, it may be a bit of a visual red herring (there was much talk during pre-production of ROTS about giving Grievous a white cape, to reflect the use of the color white to symbolize death in certain cultures) but perhaps this lays to rest rumors about Luke having lost his way or turned outright evil. It certainly brings to mind the light-side Jedi garb from the old Knights of the Old Republic video game.
However, it also doesn’t resemble the costume worn by whomever is seen putting his or her cybernetic hand on Artoo in the second teaser, so… speculate away, friends!