I recently read an interview where he said Paris-Roubaix is nothing for him. He's good on the cobbles, but only if those are on hills(his words). He said that the Ronde van Vlaanderen is the classic he wants to win the most.
So his classic season will most likely consist of Milan-San Remo, E3 Harelbeke, Gent-Wevelgem, Ronde van Vlaanderen, Brabantse Pijl and the Amstel Gold Race. He might extend his peak to the Ardennes classics as well, not sure about that.