Fortunately, the spoilers so far haven't been too revealing... at least plot wise. In fact, a good portion of the rumors appear to be false, except for a minor details here and there. I don't think I read one teaser rumor that turned out to even be partially true except for the length of it. Even the information from those who were supposedly at the recording sessions for the music were flat out wrong. However, it makes me wonder if Williams wrote and recorded more original music for the trailer or other possible teasers.