The stormtroopers in Rogue One are the original trilogy stormtroopers perfected. The eye holes are perfect, the black band around the forehead is perfect, the cheap, lame blue stickers on the jaws of the original trilogy masks are now actual grills and the shape of the mouth portion of the mask has much more of a pleasing downward sloping shape to it. The stormtroopers in Rogue One looks really, really sharp! I'm glad they made those subtle changes!