In news:68D03F36-BA45-4B58-AAC4-3D1936BCC26F@microsoft.com,
Greg <Greg@discussions.microsoft.com> stated, which I commented on below:
> What server should appear as the SOA be in the replicated zone on the
> newly added DC?
>

It will actually change to any one of the DC/DNS servers.

Unlike Primary/Secondaries, where you can only have one primary (writeable),
and many secondaries (read only), and saves the zone data to a text file, AD
Integrated zones follow a multi-master design, (a cool benefit of AD
Integrated zones, besides security), which means any of the DC/DNS servers
have a writable copy, which stores the zone data in the actual physical
Active Directory database (which gets replicated to ALL DCs).

So whenever a DC/DNS server accepts an update, at that moment in time it is
the SOA of the zone and that info will get stored with the zone data and
gets replicated to other DC;/DNS servers, which then you will see as the
SOA. When another DC/DNS server accepts an update, (or something or you
change something for that matter), it will now become the SOA.

Ace