Could Scorsese do another mafia crime thriller with De Niro?

According to Worst Previews, while he was in Germany to promote his latest thriller Shutter Island, director Martin Scorsese fielded a bunch of off-topic questions, including whether or not he will make another Mafia film in the vein of Goodfellas. Scorsese first exclaimed that he was done with the genre, but then revealed that he ….