I'm glad they didn't spoil too much of the story. Don't think I'll be watching any more UATE trailers from here on out (might watch some gameplay vids, though). What's there looks pretty cool.
I can't watch the trailer at the moment, but i think I've watched it enough times to remember the gist of it: Nate says "You ever wonder-like... Different choices... How we might have ended up?" And Sam responds with "Nah... I like the hand we've been dealt."
Brings an emotional reminder of Sully's line to Nate
at the end of Uncharted 3: "We don't get to choose how we start in this life. Real 'greatness' is what you do with the hand you're dealt."