What will we know, and when will we know it?

What will we learn about Mueller’s “witch hunt” investigation into President Trump’s so called collusion with the Russians, and when will we learn it?

Trump Said "They're investigating something that never happened; There was no collusion between us and Russia.  In fact, the opposite. Russia spent a lot of money on fighting me."   I totally believe him…

Regulations governing the special counsel say that at the conclusion of his work, he "shall provide the Attorney General with a confidential report explaining the prosecution or declination decisions." Then, it's up to the attorney general to determine whether releasing some information would be in the public interest. (Attorney General Jeff Sessions has recused himself from the Russia investigation because of his association with the Trump campaign; Deputy Attorney General Rosenstein is overseeing the investigation.)
Another complicating factor: Mueller is using grand juries in Alexandria, Va., and Washington, D.C., and grand jury information is rarely made public.

I truly believe that if this is an honest investigation, President Trump will be exonerated, and more Democrats will be damaged than Republicans.  The big question in my mind is just how many more months, or years, will this witch hunt continue?