With a difficult financial situation, I think Flick will have a hard time. A few weeks ago I read that Flick could not be officially registered as a coach Barcelona in La Liga. If this continues they don't have a good chance of player transfers, unless they get a new flow of funds. Due to the main contender, Real Madrid is currently in great team form due to quite good player transfers. Because of this, I think Barcelona will get heavy pressure from other teams who will still improve with the transfer market.
Madrid is not even in any from appearing like they will show any form of mercy on any team that they come across in the la Liga next season, so Barcelona will be under some form of pressure that they may not be able to cope through the season to the point where they may not be able to finish up even decently as they have done this season. Why would Barcelona still allow their selves to get to the point where they even have problem of registering their Coach for the season.
Improvement is now something Barcelona should prioritize as even other smaller teams are becoming very strong and improved such that I'm sure Barcelona will struggle to be able to get decent wins except for the under dogs who will not be really strong contenders for them, so that is what Barcelona will have to battle with for the r st of the season