I can't see a way that it would belong in this game. Just doesn't feel right. It would drastically change the feeling.
Did they have them in other ES games? I don't remember a single one but I could be mistaken. I didn't play much of anything prior to skyrim.
@Sidney Even in Skyrim, the Nightingale armor had a cape if I recall correctly.
I'm not sure if I'd want that in ESO though...
On the one hand capes/cloaks are cool, on the other hand I can live without them, they're definitely not top-priority....on the third hand (wtf), introducing capes would probably give birth to a whole new set of glitches