The rest of the grabs i could have done from the brief grab of the trailer are too blurred and don't show much more than CGI explosions and crafts etc.
Having said that, the grabs i have done don't show that much either. In fact, I wouldn't be surprised if nothing at all is really given away when we finally get to see the trailer.
Oh well, click here.
one thing the teaser does give away (as confirmed in the screen caps) is that future-emperor darth sidious will wield his lightsaber. and supposedly the teaser will also feature dialogue from the vader transformation scene. i'm actually pretty surprised that the early advertisements reveal these things...
its hardly a shock though : someone in a star wars movie with a lightsabre....