Well, hope springs eternal I suppose! 
No doubt, Sweden played the match of their tournament against
England, but it doesn't take away the fact their 'result' was
achieved in part as a result of England's lack of focus(esp the
second goal) given the fact England were never trailing and they
knew full well a draw would assure them of being group winners.
That said, I don't think they impressed too many people - punters
and fans alike - in their games against T&T and Paraguay.
That said, this really isn't all about Sweden - the Germans have a
knack of coming good at World Cups, however poor their preparations
leading up to it might be. They haven't lost before the
quarter-finals - when Bulgaria beat them in '94 and Croatia in '98
- since '82 and the "worst German team ever" at a WC finals in '02
made the final after coming into the tournament as the bud of all
jokes(not least, being demolished 5-1 at home by England in the
qualifiers). Throw in the fact that West Germany were champions on
both occasions they previously hosted the tournament(and I'm not
saying for a moment they'll win this time) and it's hard to see how
the current lot can't measure up to Sweden who have really
struggled to impress.
As Klinsmann said yesterday, "Die Mannschaft muss mindestens das
Viertelfinale machen" - I see no reason why his prophecy should
fall short at this hurdle... 