I saw the preview and it doesn't really give us anything that we didn't already know: There is a return to the Lars homestead, we meet a young Owen and Beru, and 3PO gets his silver coverings. However, there was one part that I found interesting and that was Lucas saying some of the emotions that send Anakin to the dark side. One of those was jealousy. Who is he jealous of? Is it Obi-Wan, perhaps Anakin assumes because he is the "Choosen One" that he should be the stronger Jedi but isn't. Or is he jealous of Owen because he thinks that Shmi loves Owen more than him?
Or is he jealous of Owen because he thinks that Shmi loves Owen more than him?
Shmi: Here you go Owen, more potatoes for you.
<Anakin glares at Owen.>
Anakin: I'd like some more potatoes too.
Shmi: You've got legs don't you? What, am I supposed to be like your mommy or something?
Anakin: You are my mommy.
Shmi: .........what?
Owen: Anyways, the harvest is going great. We're getting more water than we've ever had.
Shmi: You're such a good son, Owen. Always working hard.
Anakin: Well I killed a bunch of battle droids and clones today.
Shmi: You still talking? Get Owen some potatoes boy!