the audio in the trailer is from the scene in return of the jedi where luke tells leia they're siblings. which is in the video i just linked
I'm especially hoping that the opening scene of the main film covers the totrture and execution of Jar Jar. Fingers crossed eh?
I agree with Mr Fish and his majestic hair. I'm a casual Star Wars fan at best and even I recognise Hamill's voice in the trailer. Makes sense too, seeing as the VO mentions his "father" with a shot of Vader's helmet. Plus, y'know, the whole Luke speech to Leia thing. Big smoking gun right there.