Barça may obviously go through, but Juve may as well
There are two possible scenarios:
1) Barça succeeding in pressing Juve and jamming us in our midfield, scoring some goals and putting qualification in real balance.
But, in 90 minutes, it's likely that Juve will score at least 1 goal , so at the end we'll have a clear victory for Barça (ex. 3-1) but Juve going through
2) Juve won't suffer that much Barça's pressure and can handle the situation almost easily, scoring a goal in the first half, making almost 1 hour of useless football...for a typical 1-1 result
Afterwards, we may also have 2 extreme opposite kinds of match:
- a Psg-like Barça's performance (with ET as option)
- a 2013 Bayern-like Juve's performance......with a clamorous win for us, like 0-2 or 1-3
So, only a particular option is favorable to Barça.
But I'm that far to consider closed the qualification contest.
And it's important the physical conditions of both teams.
Last consideration.......it seems that LE has moved to a 433 formation, with J. Alba coming back: that would be good for Barça, for both their defence and their attack. But all is still in the hands of Juve