Midnight Poison has been discontinued.
I just phoned the Christian Dior head office in Paris and spoke to someone specialising in their perfumes.
I was also informed that the Dior Addict rage has been discontinued, but they will be coming back. The person I spoke to was not sure if they were just changing the packaging from the range or indeed also reformulating the fragrances. She also confirmed that Fahrenheit Absolute has been discontinued.