Rumors say that Barcelona will get Nico Williams, but the player currently doesn't want to discuss those rumors at all, he is focusing on Spain at EURO. If Nico Williams goes to Barcelona, it would be a great addition to Barcelona, let's see what happens after EURO ends.
BTW, Pedri will certainly not be able to continue his EURO journey with Spain, it could be that if Pedri's injury is serious, he will also not play with Barcelona in the early weeks of La Liga.
Nico Williams is a Bilbao player and Nico Williams career also continues to rise at Bilbao, even though Nico Williams is still young, but Bilbao did not hesitate to give Nico Williams a long contract until 2027. Thus, I think there is no complete guarantee for Barcelona to get Nico Williams, unless Nico Williams is willing to take on a new challenge with a salary that might be reduced if he plays at Barcelona, because Barcelona also still has financial problems. But yes, even though for example Barcelona still managed to bring in Nico Williams, but I believe that Real Madrid is still too strong, and Barcelona is still not good enough with its bad conditions to be a competitor to Real Madrid.
I just found out that Nico Williams got a long contract at Athletic Bilbao, even though previously I didn't know much about him apart from his brother (Inaki) who also plays at Athletic Bilbao. What I said is just a Rumor, we still don't know what will happen after, maybe as soon as the EURO event is over we'll see certainty.
With a long contract at Athletic Bilbao, I've little doubt he will move to Barcelona, Athletic Bilbao showed their loyalty, Nico should also be able to give the same to Athletic Bilbao.
That decision should be on Nicole Williams to decide and I don't think that he will be interested on moving to Barcelona because he has a major role that he is playing in Bilbao as they are the ones that strengthen Bilbao team to come up with such great performance last season.
He is still young and might not be in a rush to switch clubs because he is enjoying himself in Bilbao together with his brother Inaki Williams. However, since it is a rumor let's see after the Euros if it is or not.