Lewandowski's contract ends in the 2026 season and I think before that Barcelona can sell him to a Saudi Arabian club so that Barcelona can make a profit because if he waits for his contract to end he will become a free agent and Saudi Arabian clubs will compete for this player, yes even though Lewandowski is an important player for Barcelona but at the age of 37 Barcelona certainly needs new regeneration and the sale of Lewandowski can be used by Barcelona to recruit younger players.
That is possible situation. We know Lewandowski contract with Barcelona will end in 2026 so club might think about selling him to Saudi Arabian team before that. If they wait until his contract is over he will be free to join any team he wants and Saudi Arabian teams will probably try to outbid each other to sign him. This could mean Barcelona won't get as much money for him. Since Lewandowski is 37 years old it makes sense for Barcelona to focus on getting younger players. Selling Lewandowski could give Barcelona money they need to bring in new players and build stronger team for future.