Precisely their chances are still very big now. With the aggregate condition between them and Madrid currently still winning 1 goal this is clearly another advantage for Barcelona and of course a big chance to bring this trophy when they beat Madrid will be bigger considering that for the final they only need to play a match that is not too tough between Bilbao or Osasuna. This semi-final is a reference if they win again against Madrid then they won't have any problems in the final I think.