With regards  to the ruling it was stated about restrictions on carry. Wouldn't the carry restriction on the seating capacity now be null and void?

Please refer to MCL 28.425o for the complete statutory text

Schools or school property but may carry while in a vehicle on school property while dropping off or picking up if a parent or legal guardian
 
Public or private day care center, public or private child caring agency, or public or private child placing agency.
 
Sports arena or stadium +
 
A tavern where the primary source of income is the sale of alcoholic liquor by the glass consumed on the premises +
 
Any property or facility owned or operated by a church, synagogue, mosque, temple, or other place of worship, unless the presiding official or officials allow concealed weapons
 
An entertainment facility that the individual knows or should know has a seating capacity of 2,500 or more+
 
A hospital
 
A dormitory or classroom of a community college, college, or university
“Premises” does not include the parking areas of the places listed above.  

A Casino+
According to the ruling I would think several on this list would have to be removed. Private property owners could put on their own restrictions.

Would this automatically apply or would there have to be a lawsuit in Michigan to force it?