During the video, Peter Jackson bends down to retrieve some artwork from a drawer in a coffee table in front of him. As Jackson pulls the artwork out, some other papers fall out for only a brief second. One of the documents that falls down is a Star Wars Episode VIII script that is labeled Peter Jackson. This all happens at exactly the four minute and fifty-one second point in the video, so you can check it out with your own eyes.
Now, we're assuming that this has to be a staged publicity stunt by Warner Bros. for April's Fool Day. However, it's not difficult to imagine that Peter Jackson would be one of the directors that Disney would consider for future Star Wars episodes.