Impossible to say at this point...
Was the investigation pressured, Did Barr put the brakes on it, was the fix in from the start?
We know for a fact that the president committed crimes- that has been established... the illegal payoffs to porn stars, the self dealing of his foundation, and the tax avoidance scheme, and lying on financial documents- those are known crimes...
Whatever the outcome, we can count on many more headlines like these:
Trump's reversal on North Korea sanctions raises more questions Analysis: The president's sudden decision undermines a national security team that had touted them just one day earlier.