Yes, his clothes are very Dishonored inspired. IwasafraidpeoplewouldsayAssassin'sCreed.
As for the character itself, he is reused. Thanos use to have white hair and was a kitsune, was a sharpshooter as well, however his attire is still blue. But I deemed kitsunes to be too powerful and also, not very western in concept so I traded that out, still wanting to keep him some form of canine. But Thanos has always been docile and restrains his emotions that people often think of him to be apathetic for the most part.