As you can see, not only is the packaging reminiscent on The Dark Knight, but the Batmobile used is The Tumber, an exclusive to the two new Batman films.
Upon closer look you can see the Batman mini-fig is also based upon The Dark Knight design. However the Joker's design is that of previous sets, and not Heath Ledger's Joker. And the thug is also not one of the Joker's "goons" from the film.
The other new sets available contain the same Batman mini-fig and package design, but do not relate to the film in any other way. I'm just curious to see if any of this transfers into the new LEGO Batman video game, as there is no The Dark Knight tie-in video game. It's not too far fetched when the game was the first to show the now available Harley-Quinn figure, and new shots of the game show off a non-available Clay-Face mini-fig.