Nico Williams will be with the Barcelona squad next season and it is final. And Laporta will do it anyway. Barcelona are in financial crisis, it is true. Even then, raising 50 million is not a big task for Laporta. Athletic Club is probably willing to receive the entire amount at once. However, even if Barcelona offers to pay more than 70% at once, I think Athletic Club will agree. Barcelona will gradually pay the rest over the course of a few months. Since Nico Williams is willing to go to Barcelona, I think Athletic Club will give Barcelona that little bit of opportunity.
At the moment although the conditions are still not finalized between Nico Williams and Barcelona but it seems likely that this will happen especially with Nico's condition at Bilbao now which is indeed less comfortable because the fans are starting to have less respect for him considering the rumors that he wants to leave will clearly make him stay with the stance of not wanting to be at Bilbao for the new season.
This is clearly beneficial for Barcelona because they can now use this condition to be able to seduce Nico, only what needs to be considered for now is about the clause and salary that Nico has. Although Barcelona are slowly getting comfortable with their financial situation, they cannot ignore the fact that they are still struggling to maintain their cash balance so this could also backfire on Barcelona. Don't let what happened to Dani Olmo last season happen again this season for Nico Williams.