'Vivaldi' : Another new project ?
IMDb says that Kevin is attached to a German film titled Vivaldi, starring Ben Kingsley and Jessica Biel. It's still in script stage, which means that Kevin's name may have been posted in order to help get funding. It might also be a rumor or simply false information that someone added to the pages. There have been many films in the past where he was attached or associated with a film at an early stage like this which he ended up not doing so I'd call this a possibility but not a certainty at this point.