There are some easter eggs to be found too, some of which I've documented (with screen caps!) after the jump.
First, you should know that you can mess around with the trailer's shuttle bar at ParanormalMovie.com to see these for yourself, and of course look for others. If you find anything, please share with us in the comments section below.
The Return of Katie(?) and the Phantom Baby
First off, this trailer seems to confirm the return of Katie, who (SPOILER ALERT) was haunted, possessed and turned into a murderer in "Paranormal Activity." The woman seen standing in the bathroom doorway at the end of the trailer could not be her of course, but it sure does look like her.
Note too, in the above image and the below one, that the baby in the crib is ONLY visible in the mirror. That little kid is in some way the key to the film, as you'll find out momentarily.
The Mysterious Baby And His Relationship To Katie
Monkey around with the shuttle bar for a bit and you'll find, somewhere in the middle of the trailer, a point that seems to break the video. A series of images flash by, showing the little boy and... well... you'll see.
The sequence STARTS with this blurry, jarring picture. It's a woman (??? -- probably Katie?) with her arms spread wide and arched, almost as though under the influence of a puppeteer's strings, with a child crawling at her feet.
Next comes a flash of images of a child, presumably the one in the crib. If you look carefully, you can see another child in the background. The kid's head is being held (caressed?) by an adult's hands as he cries. The adult's green nail polish notably stands out.
Then there's the final image. It seems to be the same shot as the first one, of the woman/demon/thing with her arms spread wide while a baby crawls at her feet. Only in this shot, the baby is all alone. The coloring has the character of a vintage photograph, perhaps something from the crib baby's past.
The last easter egg cue to look for is audio only. Towards the end of the trailer you can hear a deep voice speak, but it sounds like it's playing backwards. In the final seconds of the trailer, it seems to rewind and that same audio bite plays in reverse. It's hard to tell what's being said-- I hear "Enjoy," but that doesn't seem right. If anyone's got another guess, let us know.
Finally, let the trailer play out completely and a final image of the bedroom pops up. A background noise/hum grows in volume as the image zooms to highlight the mirror image baby standing in his crib. I don't know what the deal here is but, as I mentioned above, this little boy is undoubtedly the key. We'll have to wait until the movie hits theaters on October 22 to find out for sure, but if you have any guesses make sure to send them our way.