First of all, this is not a new image, but one that has been around for almost a year. And yes, it's just conceptual art; there's a similar picture of the genin three in punkish modern clothing.

Secondly, about Sasuke's clothes: It looks to me like he may be wearing a modified monk's garb. His fuller sleeves look more triangular like monk's sleeves than normal rectangle shaped kimono sleeves, and the purplish drape around his shoulder, while not exactly like a monk's cloth, may be a reference to that. Also, the large diamond shapes are derivative of traditional 'mon' crests that are associated with a certain temple.