Bull, criminal cases of statutory rape, the victim has until they are 50 yrs old. Depending on the severity it can be even longer. Even if there was some limit hit, in something this big SCOTUS would have to rule for extension or face the wrath of a nation .... if it got that far. Witnesses are going to disappear quicker than donuts at a weight watchers convention.
Only name not redacted on the initial list was Trump, my guess is if they fail with court, they will make up some more crap and waste a few more million on investigating the Bad Orange Man