I suspect this investigation will continue regardless of whether or not the people in power want it to. That won't prevent them from trying to contain it.

The "fake news" narrative has been their most recent weapon. Many people will migrate from Reddit to communities (such as Steemit) that cannot be tampered with. Recently /r/pizzagate was shut down.

Bonus coincidence chart: https://www.google.ca/trends/explore?date=today%2012-m&q=pizzagate,fake%20news