timdiggerm said:

- There's a girl who thinks she's no one, but clearly dreams of getting off her backwater world... and then does and has adventures

- There's a disillusioned stormtrooper who, in seeking something to believe in, ends up with familiar heroes and a lightsaber, having adventures

- There's a bad guy who wants to carry on the legacy of Darth Vader

- Han is a very different man from the cynical, skeptical smuggler hired by an old man and a farmboy years ago

Sure sounds like two protagonists, a villain, and familiar supporting cast!

I think you guys are piecing together different parts of the puzzle (including leaked spoilers) rather than just taking a single trailer at face value.