Belle d’Opium is an oriental developed by perfumers Honorine Blanc and Alberto Morillas; it is described as having "less of an amber-like effect" than the original. The notes include Casablanca lily, sandalwood, gardenia, white pepper, jasmine and narguile accord.
Yves Saint Laurent Belle d'Opium will be available in 30, 50 and 90 ml Eau de Parfum. In the US, it will launch in September. (via wwd)
Update: see a review of Yves Saint Laurent Belle d'Opium.