The passage of the law will really create lots of questions on the part of most of the citizens of the state of Mississippi. I believe that if you qualify for a Firearems Permit, then you will qualify for open carry. No question there.
The questions will arise from the general citizenry about how to go about the open carry provisions. Without a cursory review of the law pertaining to the Firearms Permit and the enhanced Instructor Course endorsement, most citizens have no idea where one can carry firearms either with a concealed permit or out in the open.
I would hope that local law enforcement from the municipal PD to the county Sheriff would begin to have informational meetings about open carry. There needs to be a standard protocol for this informational meeting so that all are "reading from the same page of scripture."