The sword looks the same as this one ( http://pcmedia.ign.com/pc/image/article/114/1149185/elder-scrolls-v-skyrim-20110211094607486_640w.jpg ) which means it is in fact a one-handed weapon we see in the first pic and not a claymore.
So, does this mean that people who combine magic with a one-handed weapon will be able to defend themselves from enemy blows? I certainly hope so.