I don't think Aston Villa can give the same surprise as Arsenal did, it's quite difficult for Aston Villa to get 3 points at PSG home ground although I also don't think it's impossible.
Will it not be interesting if Aston Villa can somehow pull up the same surprising results as arsenal did, if the two English teams scale pass this phase of the competition it would mean that it will be arsenal against Aston Villa in the semifinals of this competition and Aston Villa would have very good chance of qualifying for the finals of the Champions League because according to statistics their coach has a very good record against Arsenal over the couple of seasons they've played. The result from the Premier League can translate to the Champions League and that could give Aston Villa the first ever Champions League. From what I can see PSG is just in the way of this. 
PSG is currently a scary specter this all happened when they were able to beat Liverpool in the last 16 and this positive trend continued last night, if you look at their match Aston Villa was not given enough space to counterattack. The second leg later will be an opportunity for Aston Villa if they want to surprise in the UCL competition this season but with a fairly large aggregate and also the way they play I am quite pessimistic they will be able to turn things around at Villa Park later. The final score of the first leg as I predicted earlier.
