I personally think from the "sentence" quote that there is a points deduction, not relegated, possibly transfer ban (1 or 2 year). Top 4 probably irrelevant this season and a year out of Champions League can be withstood financially. Club World Cup money, which is rarely mentioned, will help support finances in this short term time period.
Priority for the club therefore is gaining money through Champions League and Club World Cup this season. Need best possible finish in both and maintain Premier League position so that points deduction avoids relegation. If verdict avoids potential for other clubs to take legal action against City for lost revenue over past seasons, the club can move on and the future looks positive. The Real Madrid game therefore is key to maintaining financial stability in the short term and Pep will see this as a defining moment for his legacy at the club, with the potential to keep City in the best possible financial position to compete in the future.