This advertisement hasn't something special apart from the use of outfits from a pre-collection. It's unusual and special to see looks completely taken by a precollection. Because, the locations and the campaign in general hasn't anything really new apart from that thing.
In the end I find really beautiful and "very Chanel style" the first shirt, transparence, that looks better in the adv maybe for the dark atmosphere of the pic.
Vogue (show pics)
Vogue magazine (the adv, scanned)