You can re-assign devices to another virtual MDM Server (assuming that a DEP Server in ZCC already links ZENworks with this virtual MDM Server). After re-assignment, ZENworks deletes and creates a new discovered device object. If a device is re-assigned:
The Assigned User of this device (if any) is reset.
The modified DEP Profile (if any) assigned to the device is reset and the new device object inherits the settings applied to the Apple DEP Devices folder.