Doesn't matter, the narrative will be the same regardless of when it's released; just another administration denial of Russian collusion which the Democrats will claim was proven long ago.
They must release it before the election. If they release it after the election and say Biden wins and it points to Biden as being a big player and has broken the law we will have a big big problem on our hands. If for no other reason. I would think the dems would want his name cleared for the election?