Real Madrid have always been a good team in the Champions League, and I believe they will continue doing that as long as they will continue to be with Ancelotti. The Champions League competition is in their body already; they have been doing very well in the competition. We will see how they perform next season again, although I know the arrival of Mbappe will surely bring more positive changes from next season, so I think we should be expecting another Champions League trophy from next season.
At some point Madrid even makes it feel like the champions league is a domestic league in the way they always get to win the league titles too frequently, they are very good and have a very good and functional tactic they use on the champions league which keeps producing the kind of results they get for them. The fortifications they are making on the team makes them even more potentials to winning the league again even in subsequent season provided they still have all of their functional strategies in place only that they may at some point have a change of coach and I know that is going to affect them a whole while, but then the strength of the squad may likely not drop only their technicalities is going to change.