Does J.J. Abrams have another secret teaser trailer in front of a summer blockbuster?

Yes, and here's the details, if you're curious, from Vulture:

We have exclusive details on the trailer for the J.J. Abrams–produced Super 8, which will unspool at 12:01 am Thursday night in front of Iron Man 2. We feel compelled to insert a spoiler alert — read no further if you just want it to be a surprise! — lest a livid Cloverfield fan hurl an icy Slusho! in our direction. Here's what we know for certain ...

Insiders familiar with the trailer tell us that it shows a bunch of kids who are shooting a movie with a Super 8 camera in the seventies or eighties. When they develop the film, they notice that there's an alien creature in the frame. Our sources also say that Super 8 is absolutely connected to 2008's Cloverfield (possibly a prequel, but not a sequel).

Whether the actual Super 8 movie will be set in the seventies, eighties, or present day is anyone's guess. And yet, just this scrap of information will have fans obsessing for months. Advantage yours, Abrams.

-I'm really interested in learning more about this (earlier rumors today had this being the project Abrams was doing with Steven Spielberg, but that appears false)...thoughts?