They only way out now is for Barcelona to win major trophies for the next few seasons and make some sales too but who is the current most valuable player the club would rather lose if not De Jong ? if neither should happen, it's going to be a complete disaster, they're well over playing their hands especially with the oldies. I value the Kounde and Raphinha deals so far, and but the Lewandowski deal still doesn't sit well with me... He was impressive against Real Madrid and Barca look to be alive again, but it's all just still way to early to make any speculation on how the season would go.
I think Chelsea have done us a few bad in this transfer window too, as Barcelona have been forced match the offers from Chelsea for Raphinha and now probably Kounde too, I think if Chelsea had not submitted an offer Raphinha earlier Barcelona would have gotten him for lower price since the players themselves preferred Barcelona to Chelsea but the clubs have no reason to obliged to a deal of lower value, if an higher one has already been made.