Normally as is stance now PSG still remains the favorite team in this Club World Cup, so everything is quite possible to happen in this semifinal. Although sometimes football is unpredictable more especially in this stage of going to final, no team should be underated because what Real Madrid played against other teams in the beginning most not going to be what they would play with PSG.
This is a semi-final full of unpredictable outcome. Madrid is a bit balanced now compared to last season, although PSG looks like the favourite due to their outstanding performance in the just concluded champions league. I just feel Xavi Alonso will do his best to win this has his first trophy in Madrid. If PSG must go beyond the semi finals then it will cost them a game beyond skills but extreme determination.
You are absolutely right, the Full time result or score can not be predicted easily and the winner of the match is not even known for now because PSG has proven themselves over and over again last season and they are still operating in that high frequency but Real Madrid is not a child's club, is a club full of wonders and surprises and so no matter how strong or inform PSG is they will fight it on the pitch that day and people who luck is on their side will come out as winners that faithful day and it can be any of them but right now I don't know who to even call favorite because both team is currently okay and balanced as it stands, I will just anticipate till that day.