Migrate XenDesktop 7 environment to new domain?

We currently have two domains housed in a vmware environment. One of them runs Citrix XenDesktop 7.5.

Due to some restructuring, we are consolidating into one domain.

OPTIONS:
We will have to migrate all users from the non-Citrix domain into the Citrix domain (ADMT, Exchange, GPO, etc.)
-- OR --
We will have to migrate the Citrix XenDesktop environment into the other domain. (Move PVS, SQL, DDC, etc.)

I've looked for an article or paper that discusses migrating XD7 servers to a new domain and haven't found one.

To me, it seems like a rock/hard place, catch 22,  <insert other interchangeable, worn out phrase>, on which task/project would be easier to manage. From a management perspective, we don't care which one takes place, only that it was as easy as possible.

Any solid architectural guidance would be greatly appreciated.