I could see the possibility of civil charges against the administrators for any incidents after the first time they were made aware of Sandusky's proclivities but there's likely enough plausible deniability built into their actions that proving guilt could be difficult.
I don't forsee anyone else doing jail time unless Sandusky had partners or a pedophile network. Some believe Sandusky was actually a procurer for other pedos and that the charity was simply a front for their operations.
I don’t believe that they’ve been held accountable. If they knew about it and covered it up, that’s criminal and they should be prosecuted to the fullest extent of the law.
Penn States football program should be destroyed as an example to others. Padlock that facility for a decade at least.