Anyone know where I could find or if somebody could post GMG Settlement stats for the cities mentioned in that book? (I know Whitethrone's been done already, in case you guys were wondering.)
The only way the most recent "city statblock" version (using the rules of the Gamemastery Guide) would exist is if the cities had been used since the printing of GMG as the setting of an adventure (such as in a module or in an AP or even just a lowly PFS scenario).
So what's the answer, as far as I know? Nope, except for Whitethrone, which you have already mentioned. Why is that? I'm guessing the cities that were included in "Cities of Golarion" were included because there were no plans on using them in any upcoming adventures, i.e. they were included because Paizo knew that a module or AP would not detail them further in the near future.