There is if someone would follow the money trail. Plenty of hard facts to reach a guilty outcome. And over half of the papers haven't been released. If someone motivated comes to power there is a good chance.

I'd at least expect there to be an investigation, based on the huge volume of information that already exists. Unless we believe that the files are just 3 million pages of casserole recipes and that the people who visited just went to play Settlers of Catan.