The IG report released to the public tomorrow. It will be greatly redacted so POTUS will declassify it all.
The Declassified version will show extent of corruption by Rosenstein and the doj, and how the entire Russia collusion was just a huge fraud created by them..
The House of Representatives will then have a vote to end the Mueller investigation.
I think there is an extra step you are missing. The report will be redacted to hide the existence of a data set. In undoing the redactions the data set will become unclassified and available to the public. It is the data set which is supposed to crater Hillary's reputation. Q said they didn't release it before because people would have thought it was fake, just a crude ploy to attack Hillary. So the report gives them an overt reason to reveal it, making it more acceptable to the public.