I personally dont think there ever will be Family Secrets part 2 since most of the guys who allegedy were the targets are now dead. There might be some future indictments such as the recent one with Gagliano but I doubt there will be some huge trial with alleged bosses and stuff.

Mongol General: Conan, what is best in life?

Conan: To crush your enemies, see them driven before you, and to hear the lamentations of their women.