USC has plenty of money. They still have a 5 billion dollar endowment, along with plenty of alumni support, not to mention having a budget of over 5 billion dollars a year. It's still one of the most prestigious national universities out there, as the demand for a spot in their programs is at an all time high.
They'll bounce back from these scandals one way or the other.
Regarding the football team, I suspect they'll be back to their 10+ win season caliber, now that the team isn't playing a lot of true freshmen, and that they got rid of Tee Martin. That 2018 team actually came much closer to a respectable season than their record indicated.