Barça are moving non-stop in the transfer market and they've already studied many possibilities over the past few weeks. The board is clear that they need some reinforcements for the 25-26 season and they're looking for them. Although it seemed that Nico Williams was going to be the big signing, in the end, that wasn't the case.
The winger chose to renew with his lifelong club after starting talks with Barça; something that, for many, is considered an act of bad faith. Fortunately, Hansi Flick is very clear about things and he's willing to give everything so his team can finish a year as good as or better than the one they've just finished. He had in mind a star who's being talked about in all the big clubs' offices, but Bayern are getting ahead.

Hansi Flick and Barça's situation
Hansi Flick has made a great start at Barça and the results achieved in his first year as a culé have been much better than expected. The German adapted perfectly to the club and from the very beginning, he understood the difficult financial situation. Fortunately for the Catalans, the board is doing a good job and there are fewer and fewer obstacles.
Barça are recovering satisfactorily from their economic crisis and everything suggests that they'll be able to sign under the 1:1 rule. In fact, the board has already stated on more than one occasion that there won't be any problem with registrations. Something that, later, Javier Tebas contradicted by stating that the club isn't in the 1:1.
After Nico's "no," Barça's board reconsidered the option of Luis Díaz, who's still delighted with the idea of playing for the Catalan club. According to Bild, Bayern Munich are willing to make a €60 million offer for the Colombian winger. Although the offer is tempting, it's known that Hansi Flick will do everything possible to bring the Colombian in during this transfer window.

Luis Díaz's decision
Luis Díaz has Barça as his priority, but several sources state that he also wants guarantees that he'll be able to play. In addition, Bayern Munich's offer could make things difficult for the forward, who'll have to make a decision. Although we can't take anything for granted at this time, it's likely that we'll be hearing Luis Díaz's name for a long time.