I am pretty sure Inter Milan will face Manchester City in the quarter finals. Fluminense and Al Hilal need a miracle to beat the two European giants, their chances are quite low. Likewise with the other two matches, there is no doubt about the chances of Real Madrid and Dortmund advancing to the quarter finals.
If that scenario really happens, then we will see the quarter finals will be dominated by European teams, only Palmires is the only team from the Americas that is still surviving.
Palmeiras who has qualified for the quarter-finals can also go home straight away if they cannot beat Chelsea because the Chelsea team is also in very good condition after sending Benfica home in the last 16. As for Inter Milan, I think the team will qualify more easily because their opponents are not very comparable, but for Manchester City it seems like their match will be a little more fierce because the Al Hilal team is a fairly strong team in the Saudi Arabian League even though in terms of caste it is very different from the English League teams like Manchester City.