TheForce.Net reports THREE (POSSIBILY DIFFERENT) Teaser Trailers. Check it out:
Trailer A: Monsters, Inc. - There is a trailer with Monsters, Inc. Your spies thus far have hit this right on the head. Look for this on the release date, the first few days of November However, it is the short teaser trailer, which shows some great stuff but is just the beginning.
Trailer B: Internet Download - There is a second trailer that will be available for download starting November 9th. We're not sure if it will be just with the DVD-ROM but we do know that that is true, at least initially. I would expect the full site to get it next though, so they can break the record download numbers. This is the favorite of the trailers so far amongst people that know.
Trailer C: Harry Potter - This is the long form trailer, and will premiere attached to Harry Potter. Why not capture the audience that fits perfectly the demographic that Lucasfilm is targeting this Thanksgiving. Also, since ILM did much of the work in HP, it only makes sense to showcase more of their amazing work. November 16th here in the US, no idea of the international schedule.
I JUST CAN'T WAIT...