He points out that the trailer does give away quite a bit, so I will be avoiding it (see our previous discussions to find out why).
Here's an excerpt from Joss' complete post:
"Now, here's a word of warning: this trailer ain't shy. If you're looking to live totally spoiler-free, know that there's plenty of key dialogue and images running through this bad boy. It's pretty tasty, though, and it doesn't give everything away. But close scrutiny will definitely learn you much of what's to come. (Anakin TOTALLY goes evil.) It's a nice piece to while away the time till September, and hopefully should intrigue th' peeps that don't have coats of brown.
The only thing more exciting than y'all finally seeing this was showing it to Nathan. Like a schoolboy giggled he. "
I still can believe the movie won't be showing until September 30th, but at least we're making progress.