From the recent performances of Barcelona, it is possible that they will win Napoli in Camp Nou. This is because is like Barcelona have started improving in their performance and seriousness to win matches, unlike before. We have seen them win their recent games, apart from the one that they played draw with Napoli. This past weekend, they won, and this will give them confidence on facing Napoli with high morale.
Napoli is also a team that is passing through difficult times like Barcelona, but they might not be able to play the way that they played in Italy, because there is always a home advantage for every club playing at home. However, it is 50-50,and any of the club that can outsmart the other club will win the match, and qualify to the next round.
In a few recent matches, Barca's performance has improved somewhat. It seems that when they learned that Xavi would leave the team at the end of the season, the players did not play as heavily as before, especially Lewandowski. The score of 1-1 in the second leg does not say anything when the home and away goals rule no longer exists, just a little home field advantage for Barca in the second leg. My personal prediction could continue to be a draw, and the two teams will settle in a penalty shootout.
If you look at the opportunities in the second leg, I think Bayern Munich has quite a big chance, they are only 1 goal behind Lazio and the second leg will be played at their home, of course the percentage for Bayern Munich to qualify is very large.
However, currently what is a bit of a concern is the performance of Bayern Munich's players which is quite poor with all the internal problems that this team is experiencing.
I really did not expect that Bayern's instability would appear at this important time. Before that, I really appreciated Bayern and considered them the brightest candidate for the UCL championship title this season, but it seems that instability is dragging them down. This will be an advantage for Lazio, if exploited well they can defeat Bayern right at home. Besides, having a 1-goal lead also helps Lazio have a better mentality in the upcoming return match.