16 teams left.
Argentina and Australia are also in the same quarter of the draw, so if the US wins, I think you play the winner of the other game. If you win both games, you are in the semi-final. I wouldn't rule out the possibility that you get there.
England play Senegal tomorrow. Our quarter also includes France and Poland, I think, so that would mean one of our four also makes it to the semi-final.
I think this is a fairly open World Cup, particularly because France and Brazil each have a star player injured at the moment and Messi is getting on a bit, and also because big teams like Germany, Belgium and Italy aren't in the competition at this point.