PSG just won their first Champions League title, left with the same players in the team, i expect them to be a difficult competitor but chances should be slim even if they will make the league difficult for other teams to progress, they might be kicked out during any stage of the finals before the main final. I have the feeling that if Barcelona can make it to the semi final, this time around might become the next Champions League winners, with their performance so far they deserve to raise the title.
Going by tour point of taught, Barcelona even stands a better chance than PSG the way I see it, actually it is always more difficult to defend a trophy so if PSG are trying to defend the champions league trophy, I can bet that they will find it really difficult this time because the likes of Barcelona, Realm Madrid, Liverpool or Manchester City will not make the mistakes they made last season so they do not end up not getting the champions league, one of these teams I just mentioned are very likely to win than PSG been able to defend.