That may depend. Age of consent in New York is 17. If he's on tape banging a 17 year old, that's embarrassing but not criminal. A tape of that made without his permission probably can't be released legally, but he just gave permission. But yeah, if he's on tape with someone under the age of consent, then it probably makes no difference.
Of course, that's a mighty big if. Epstein is the sort of guy who built social credit by hobknobbing with anyone and everyone of importance he could get near. I'm sure he tried to get kompromat on everyone he could, but there's no way he actually got kompromat on everyone he socialized with. That would have been too restrictive, and would have limited the size of the network he could build. So the fact that Epstein hung out with Dershowitz doesn't suffice to indicate that Dershowitz actually engaged in any misconduct, and we're essentially no closer to knowing whether or not he did.