I don't think that anything will change next season on Barcelona financial situation, because they need to improve their financial strength and that cannot be done within a season. Barcelona needs to find a means in which they can solve their financial difficulties so that they can buy players of their choice in order to strengthen the team.
What you said makes sense because for a team that still has a large expenditure on its own player's salary and the team doesn't have more additional income like Barcelona is currently experiencing, of course it will always be difficult to get chosen players and Barcelona has also failed to get players like Nico Williams at this time. So Barcelona's financial ability itself is still not in a good enough condition even though the team has been able to win La Liga last season and also looks strong in several other competitions such as CDR and UCL.