Milan-bound.
They have acted as his "councellors" for the past year, looking out for him, advising him to stay in Lille for another season before making the step up to a big club next summer. They are therefore further into the Hazard-negotiations than Inter, and as far as I know, we haven't even been involved at all. There's a bond of trust developing between Milan and Hazard, so my bet is that he goes there at the end of the season.
In fact, I wouldn't be surprised if a deal is already in place.