Ghost Rider and Tintin

I spoke of Stephen Spielberg yesterday, and it reminded me that we haven't heard of any movement on a sequel to Tintin, which is too bad.  I had understood that Peter Jackson would be directing the second installment, with Spielberg and Jackson collaborating on a third, but I haven't read any updates in a long time.  I hope there are more to come though, I love the Tintin books and the first film was a great representation.