When they do, our political surroundings will look very similar.
Rivers of emotive prose will be emptied to celebrate or dismiss its findings, but the result will remain what it was always going to be: the only solution for DJT before 2020 is impeachment and removal; the Republican majority in the Senate will not vote to remove DJT, ergo, the ostensible solution remains to beat DJT in 2020.
An investigative Hail Mary is less probable than ever. Trump never stopped campaigning. There's little time to be wasted in puny rhetorical strife over the Mueller Report, if the point is to beat DJT. JMO.