No one knows what the Darren Wilson grand jury will conclude, not even Nixon [View all]
No one knows because the final vote has not occurred.
It seems that the prosecutor has either presented all the evidence or is very nearly done. Once the grand jury has all the evidence, it will be up to the jurors. It takes only 9 of the 12 for a true bill and there are four homicide charges available. The grand jury could also add charges.
The homicide charges include first degree murder, second degree murder, voluntary manslaughter and involuntary manslaughter. No one, not even the reactionary governor knows what the result will be.
It is likely that even the 12 grand jurors do not yet know what the result will be, unless they have been taking polls and votes along the way.
It is entirely possible that an indictment on something other than first degree murder is issued.
Since the national guard deployed today, it can be inferred that the prosecutor has (or will soon) closed the record and requested an indictment.