From what I hear there are about ~45 known clan city "zones" , which both is and isnt a lot. There are also various bindstones and even hidden bindstones scattered across the map, similar to AC lifestones.

There may be more than what is currently listed or known as well, but there are at least that many.

That being said, as I mentioned previously - everything can and will change with new information. If we locate an unclaimed clanstone that looks to be super-defensible in an area we want... we might stick out necks out and try to take it.

A lot depends on things that are currently unknown, and random bouts of opportunity that are as yet unforseen.