UCL next season is still quite far away and we can't see the progress made by each team because the League has just finished. Facing the transfer season and I am sure the strength of each team will increase especially the top 5 of the standings in each League will focus on strengthening it by adding new players. What is certain is that the Champions League next season will be much more interesting than this season, Real Madrid is hunting for players, Manchester City continues to try to bring in players to win back the domestic trophy, there are so many big movements that we will still wait.
I believe all of clubs learned from the result of current result of UCL, and start to rebuild their squad again. However, i don't think we will have new candidate to compete for the UCL. I believe the clubs who will compete for the UCL next season will not much different from last season.
We will have Madrid, Barcelona, City, and PSG as the strongest candidates to win UCL next season. The candidates may increase, but i see them as the strongest teams next season.
Those teams are spending so much money to strengthen all of positions, and still ongoing now.
The best European teams are still the same but it is possible that many surprises will occur because it always happens every season as we know that the Champion League is a very difficult competition and all teams have great ambitions to win the Champion League title.
Every team definitely wants to perform better next season with all the changes they make but of course it doesn't always go according to plan because it could also be the opposite they experience.
For the favorites, it will certainly remain the same as the previous seasons but I am still sure that the Champion League competition is always fierce every season.