Japanese 'Inception' trailer gives more Watanabe!

It's necessary because finally we get a good look at Ken Watanabe, which I am surprised people haven't really been talking about since the trailers emerged. But if we were to piece together what we have seen so far in all the trailers that Watanabe emerges  perhaps as an antagonist and the character who plays DiCaprio's wife which we assume is a key part of his character's story is along with him? Bah. It's all speculation. One can't help but wonder but these things are best left alone and we wait until July for the answers.