If Comey is charged in a DC court, he will never be convicted of anything. "Reasonable doubt" will be assumed. Any available jury will likely applaud the actions for which he might be charged.
We are not going to solve our problems using the court system. It remains to be seen if we can solve our problems with the "elections" systems.
Comey is charged in the Eastern District of North Carolina, where his beach house is located. The DOJ has stated that the Instagram post is not all of their evidence. There are also possible charges from the South Florida District grand jury related to the lawfare conspiracy against Trump including the Russiagate hoax and the Mar A Lago FBI Raid.