The percentage for arsenal, inter, Milan, Barcelona, PSG, Bayern Munich, Leverkusen is too small, given the fact that this are teams that have the capacity to pull up surprises, nobody knew Dortmund will get to the point of playing in the champions League finals against Real Madrid. Manchester city too are not too much of contender in my opinion as i see them as a team without much champions League Dominance, the 39% given to them is on the high side for me. Real Madrid are the kings of the champions League, so i agree with you on the 60% chance you gave them. However i will be looking out for others teams for suprise, as this is the game of football, so anything can happen.
It seems too early for us to be able to give predictions that do not have a reference in the prediction, currently Manchester City is indeed a pretty strong team in the English league and also the Champions League, but that doesn't mean we have to favor them better than teams like Madrid and Bayern Munich next season, I think this season football continues to present many surprises that we can't expect at all so far, Football, of course, cannot only stick to predictions and also the quality of the team because indeed so far we can see how big teams actually have to get a defeat from a team that has never been favored at all, of course Dortmund entry into the final can open our minds about how victory in football is not only dominated by the favorite team so far.
Teams like Arsenal, Inter, Milan, Barcelona, PSG, and Leverkusen have a fairly small chance in this prediction, of course, it is quite natural if you look at their mentality so far, but in this case maybe we will also be able to see the surprise that they may give next season, especially Leverkusen who is indeed the best team in my opinion this season, even though the team has a small percentage of winning the UCL, but in football everything can happen and of course Football is always full of surprises, and everything will depend on the team performance on the pitch in my opinion.