For now we don't know what Barcelona's plan for the following season because we know they have financial problems that can hamper their plans. On the other hand, Real Madrid is getting closer to Mbappe rumors and if this rumor is true, there is no way for Barcelona to compete with Real Madrid this means that Barcelona is really in a complicated situation, what do you think will be done by Barcelona? Some people say Barcelona can rely on local talents from the academy but I think it takes a long time it even takes 3-4 seasons to increase it and there is no guarantee that it will work, another solution Barcelona must immediately get another loan if possible and release Lewandowski of course.
Barcelona just need a few signings and they're good. The team is not as bad as people make it seem. Their financial crisis is also not as bad as the media makes it seem. Look at two seasons ago when media houses were saying they'd go into bankruptcy, they signed Lewandoski, Raphinha, and Kounde. Last season they got Gundugan, Felix, and Cancelo.
If you've been following La Liga as a neutral fan, you'll see that Madrid is above Barcelona not because Madrid played exceptionally better, but because Barcelona has suffered injuries at very crucial moments and they don't have quality squad depth to fill in for injured players.
The most important thing Barcelona can do is hire the right manager if Xavi is truly leaving. To me, that's the single most important thing. They just need a DM, a RW, and a LW that can dribble, fast, score goals, and create chances then they're good.
It doesn't matter if Madrid signs Mbappe, that's what Madrid does, that's who they are, they always sign the best players in the world yet Barca still competes with them. Makes these 3 signings and gets a good manager then Barcelona will be ready for next season.