I suspect that, all across the Nation, many cities/townships/villages/counties will stall and stonewall until they see how Chicago's anti gun ordinances fare in the courts.
Now... because of MCL 123.1102 I don't see how any municipalities in Michigan can continue to stall with changing their ordinances.... but if they do stall too long:
An excerpt from:
http://legal-dictionary.thefreedictionary.com/writ+of+mandamus
mandamus
[Latin, We comand
.] A writ or order that is issued from a court of superior jurisdiction that commands an inferior tribunal, corporation,
Municipal Corporation,
or individual to perform, or refrain from performing, a particular act, the performance or omission of which is required by law as an obligation.
Perhaps this could be brought to bear?
Granted I'm not familiar with how to go about obtaining a Writ of Mandamus or even if a court would entertain such a thing. But I know there are other, much more informed, folks here who either do know... or can find out... more about it.
Edited to add:
Just more wondering on my part.... If the Attorney General's Office were informed of municipalities that have illegal ordinances would the AG's office send them a letter... or something... instructing them to change said ordinances because challenging the ordinances on a case by case basis not only infringes upon the rights of... but also creates an undue burden upon... the citizens? Or do I have what the AG's Office can do wrong?