I see what you mean. I also see what appears to be dirt and scratches in the EW comparison footage. However, if you look at the new footage in the Blu Ray second trailer (which also features the alien atmospheric ascent footage) the scratches are gone and there isn't any noticable damage in any of the shots.
Hmm - all I can assume is that this video was compiled *before* the previous one, very strange!
But I've added it to the coverage at TrekCore. I've also taken two frames from the live action in the trailer and compared them with DVD grabs of the same frame. You can view it here: http://tng.trekcore.com/bluray/index.html#farpoint
Somewhat limited by the quality of the video, but the differences in colour timing are quite beautiful and just look at that new compositing on the Zorn frame! Goodbye bad blue-screen viewscreen work!
Also noticeable on the view screen...the star fields are different...
RAMA