Ether 13

 As Moroni abridges the record of the Jaredites, he writes that Ether saw - 

"...the place of the New Jerusalem, which should come down out of heaven, and the holy sanctuary of the Lord.

4 Behold, Ether saw the days of Christ, and he spake concerning a New Jerusalem upon this land."  (Ether 13:3–4)

He also saw - 

"...a holy city unto the Lord; wherefore, it could not be a new Jerusalem for it had been in a time of old; but it should be built up again, and become a holy city of the Lord; and it should be built unto the house of Israel—"  (Ether 13:5)

And also mentions he saw - 

"...the inhabitants thereof..."  (Ether 13:11)

And then Moroni concludes - 

"...I was about to write more, but I am forbidden..."   (Ether 13:13)

In my mind, I believe that these two cities are more centers.  I believe that Zion will be scattered throughout these lands for many temples are built and will be built to accomplish all the word that is needed.