Yeah, anything is possible in the game of football, but in this case I will always go with PSG this campaign. I initially didn't believe in them when the competition started in September. My convictions about them started with the way and manner they played against Manchester City in game day 7 of the group stages game, although people will argue that City isn't in form but the way PSG played even after they were 2 goals down was top notch. Their game against Liverpool in the Round of 16, the way they managed, controlled and advanced even when they lost at their home ground was something else. In my opinion PSG stands a better chance of beating Aston Villa.
I want to trust Luis Enrique. Ultimately, I believe that PSG players will not make any mistakes in the match against Aston Villa. Aston Villa is not a very strong opponent. At least, Aston Villa will be weak compared to Liverpool.
Luis Enrique is very experienced in the Champions League platform. And that is why he is able to defeat the strong Liverpool in the round of 16 match. PSG's qualification for the knockout round was uncertain. Even then, this team is now in the quarter-finals. I believe that PSG will ensure a ticket to the semi-finals by defeating the Aston Villa team.