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.
Of course, next season Champions League will different from this season and we will definitely see good performances from clubs that were unable to reach the semifinals. Clubs that performed pretty good this season might not be in their peak form next season. Changes is always constant and we don't know what next season will be like to most of these big clubs.