No, I would love to use offline servicing, but unfortunately that isn't an option.
Right now we are using SCCM to deploy our images to new workstations or when we reimage a workstation via PXE. Those images were captured as 1511. I would like to add steps into the task sequence so that while the system is being imaged it is getting upgraded to 1607 at the same time. So for example, it will apply the 1511 wim file and then apply the 1607 upgrade as well as the latest CU.