Avengers rumors

A recent Den of Geek posting states that Louis Leterrier is writing Iron Man 2 with Robert Downey Jr. as we speak, that a new Avenger will appear in said sequel, and that Jackson, Downey Jr., and Ed Norton will all be back for the ensemble movie. The source they cite is referred to as "Mr Miyagi", so I'm taking this one with a spoonful of skepticism.