I hope Barcelona finalizes the sale of Roque as soon as possible to raise some funds. If Nico Williams is really staying at Athletic Bilbao then they would look for another alternative. They just can't finish this transfer window without making a proper transfer to the attacking line. Raphinha isn't a reliable player. They need a more consistent winger to the left side.
But I can't see anyone else rumoured as a Plan B in case of not being able to sign Williams. Have you heard any?

Hansi Flick has come in a really tough time so I'm really curious how good he will be able to handle this Barcelona.
Xavi had a harder time than Flick. He made Barça champions after a terrible season. I don't know if Flick can perform like that because they are playing against the best Real Madrid in history. Barcelona must fight with extra effort this year under Flick's management, otherwise they won't be able to do it.