If we look at Barcelona three upcoming matches against Osasuna, Young Boys and Alaves, it seems that Hansi Flick does have a great chance of leading Barcelona to continue the positive trend. Barcelona most difficult period will occur after the international break in October, where they will face Bayern Munchen and Madrid. Referring to Transfermarkt data, Frenkie de Jong, Dani Olmo and Fermín Lopez are likely to be available in mid-October, of course Barcelona will have a additional power when they are available again, and they are ready to face tough opponents during that period.
Barcelona are somewhat lucky that their opponents in the upcoming matches are relatively weak. Barcelona will play against Osasuna and Alaves in their next two La Liga matches. And Young Boys will face Barcelona in the Champions League match. The performances of these three teams are quite erratic. So the chances of Barcelona winning are high.
De Jong and Dani Olmo are likely to be back with the squad before mid-October. And the return of these two talented players to the squad will undoubtedly strengthen Barcelona's midfield. At the same time, Barcelona's overall performance will be more stable. Dominating La Liga is going to be tougher for Real Madrid this season.