Actually, for now I still don't see new rivalries like Mbappe and Haaland, especially since the designation of the word rival for them is also a little complicated I think because the conditions are a little different from Ronaldo and Messi.
And yes I agree with you because one of the factors about this rivalry is difficult to happen is because Mbappe is still at PSG.
PSG's conditions are always ranked as one of the candidates in the Champions League but we also know how they always navigate the Champions League so in this case I think it could be one of the conditions where rivalry cannot occur.
In my opinion, the era of rivalry between Ronaldo and Messi cannot be replaced by the presence of Mbappe and Haaland. because both of them are still young and need to achieve as much as possible. So let this run as a challenge for Mabappe and Haaland. At least to reach that point, the Champions League competition must be dominated. Haaland is already at the right club but Mbappe is still struggling with high wages and I am really sick when the news continues to be exposed. If Mbappe stays in just one league and nobody challenges him then I'm sure Haaland can dominate more.
Bayern Munich, PSG, Real Madrid, Barcelona, Inter, Napoli and several other big teams had to fight hard to win the title. Manchester City have done their best and have convinced many people that they can dominate Europe with their quality, but anything is always possible.
In the English Premier League maybe Manchester City will be much more promising and there is no doubt about it. However, for the Champions League competition, it is not certain that Manchester City will dominate the trophy again. Because after all the strength of every club that has managed to get tickets for next season is proof of strength that is not easy to predict. I know Manchester City is quite a troublesome candidate, but we will also not forget how Bayern Munich, Barcelona, Real Madrid, and the clubs that represent Italy always have a way of dealing with the pressure of the opponent.