I think it's no longer about expectations, but the fact that Real Madrid is the best team for the long term. After all, Real Madrid has young players in its squad and we know that Real Madrid has always been a team that is able to retain great players for the long term. Therefore, because Real Madrid has many young players with great potential, ofcourse Real Madrid will remain at a high level from season to season. Indeed, there are still many other top teams, but stopping Real Madrid's dominance will be a difficult task for the other topteams. So yes, I think when it is said that Real Madrid is the strongest team in winning trophies, it is not an expectation, but in reality, Real Madrid has a very big chance of consistently getting trophies.
In my opinion, the young players at Real Madrid are not comparable in terms of quality to the old stars, who are now almost all gone. Actually, only Modric is still there and he won't be playing much longer either, but what Real did well is that they let the young and old players play together and they were able to pass on their experience and knowledge. For this reason and because they make good transfers, I still think they are the top favorites for the CL title in the next season.
There is no doubt that the old players are more experienced than the young ones, but if these young players don't continue playing to improve themselves how will they have the experience. One thing that I observed is that these young players are not just anyhow players but they are world top classic players that will put in a good performance for the club in other for them to achieve success.
A lot of superstars started at young age and they were able to make history. Also Real Madrid has an old experienced coach to help the young ones perform better on the field. Next season might become the 16th UCL trophy for them.