Interesting shot of Jon Snow decked out in black and GREY, holding a direwolf-head tipped sword. Looks very much like a Lord of Winterfell rather than a black brother. Of course there's also the closing shot of him bleeding out in season 5.
http://www.ew.com/article/2015/12/03/game-thrones-season-6-trailer
http://www.ew.com/article/2015/12/03/game-thrones-season-6-trailer