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.
Several unsuccessful deals at high prices are the main reason for the deterioration of Barcelona's financial situation. If Barcelona wants to change their financial situation very quickly, they will have to forget about their good team performance. Now, there are some good quality players in Barcelona. If Barcelona cares about money, they will have to sell these players and if they sell these current star players, they may get a good amount of money but their club will go back to the previous state.
I think Barcelona will not do this, but they will move forward with their current team and the club president will probably manage the investment for the club in any way. If a big company invests a lot of money in Barcelona, then Barcelona's situation will be normal again and Barcelona will then be able to bring the players they want to their club.