RB Leipzig was completely prepared to compete with the bundesliga's two premier clubs, and I believe their prior performance has boosted their strength to challenge for the season league title next season. RB Leipzig will compete in the UEFA Champions League next season, and all of the players will have to buckle up and confront a new set of challenges. It will undoubtedly be a competitive environment for both the players and the coach. Marco Rose, the Red Bulls coach, is always ready to accept new difficulties and figure out how to solve them without hesitation.
I even thought that before the start of the last season, that the squad of RB Leizpig was already stronger than the one of Borussia Dortmund back then, but then RB Leizpig had this absolutely terrible start into the season which also lead them to change their coach after a few weeks. If that bad start would not have happened then i think Leizpig would have been a tough contender in the race for the Bundesliga title until the very end.
Now RB Leizpig is pretty hard to predict though. They have lost 2 of their best players with Nkunku and Szoboszlai and we don't know yet how good the players that were bought to replace them will perform in the Bundesliga. Also Gvardiol also might still leave RB but then they will get around 100 Million € for him.