Lewandowski has been motivated to tries to add his trophy collection to his library, Uefa Europa league is one he doesn't have which I think is a big desire to create many goals to Barcelona. But, the age factor is one condition he must think if want to continue in europa competition because there is a opponent that has golden age player who can be as competitor. Barca also have the attacker who can replace him any time if can give a contribution like Dembele, Raphinha, Depay and Torres.
Competition between young players can sometimes make Lewandowski even sharper in front of goal, I think he will continue to play to fill Barcelona's starters even though he is no longer young but Lewandowski's instinct for scoring goals cannot be doubted. It is likely that Lewandowski is a strong candidate for the top scorer in the European league this time, but he will need to beat Vitor Oliviera's record of 4 goals in order to win the award. However, if there are other options if Lewandowski is unsatisfactory then the choice I think is the most suitable is Memphis Depay, although he is rarely played but he is still good enough as a striker.
Depay? In fact, he will be auctioned off at a low price in the transfer this time because his contribution is lacking.
I think in this case Lewandowski will still play his role well because in any case he is the hope now.
But this condition is still uncertain, especially we also may have to wait longer with things that will definitely happen in the continuation of the league because there could be some surprises about this transfer and the performance of the two clubs before the Europa League Play Offs begin.
Since Lewandowski's arrival at Camp Nou, Depay has rarely had minutes to play, so it's only natural that he hasn't contributed much to Barcelona which has made his market value also drop, but as an option to replace Lewandowski he's still quite good. But on the other hand, there is still no suitable replacement for Lewandowski's role, but the play-off round is still a long time away. We still don't know what will happen, let's just wait.