This is the way to do a teaser trailer. It tells you nothing at all about the movie, but gets you pumped while watching it. Without giving anything away plot-wise, it makes you want to plop down your money and get your butt in the theater. Have a look at the trailer here:
And here we have the Japanese trailer, which has about 10 seconds of addditional footage at the end. If you have watched Star Trek II: The Wrath of Khan, the final few seconds should look familiar . . .
Star Trek Into Darkness opens on May 17, 2013.