Here's the answer I got from support on PC Transplant. Disapppointing on the Office 2016 front as it's been out 3 months now.
<<PC Transplant Migration from Windows 7 to Windows 10 is support from 7.6 HF4 onwards.
PC Transplant Migration from Windows 7 to Windows 10 Anniversary Update is support from 8.0 HF4 onwards.
Referenced from the Support Matrix on page 50 Table 1-13, http://www.symantec.com/docs/HOWTO9965
However, we have not added PCT support for Office 2016 yet. >>