I don’t think that the likelihood of such a final is high - firstly, the teams can meet at earlier stages of the tournament, and secondly, they are not favorites. Take a look at the bookmakers' odds on who will reach the final:
Manchester City 1.96
Fc Bayern Munich 2.58
Real Madrid 3.19
Arsenal 3.68
Now the quotes are a little distorted because City have the easiest opponent of all possible and we can say that City are already in the quarter finals, but in any case they are the favorites of the tournament and in order for us to see the final without them, someone has to knock them out. I would like to believe that someone will succeed.
It is surprising that Arsenal is in fourth place and it seems that the bookies are quite hopeful that Arsenal can reach the final round. I think that compared to Arsenal, the fourth place is more worthy of being occupied by Inter because we know that Inter was able to prove it last season by being in the final, but maybe the bookies saw something else in Arsenal that made them be in that candidate.
For other candidates such as Manchester City, Real Madrid and Bayern Munich, I don't have a problem because these three teams really deserve the highest place, especially with the consistency they display every season, so that is the right assessment. I'm curious as to whether it's possible for Arsenal to reach the final round because I think getting through to the semifinals is quite impossible.