Took another test drive today. Full charge and drove 100% EV. The Next Full Charge display was still inoperative as is the Full Charge display on the left screen. Likely another module in the vehicle somewhere needs updated or swapped outright (if that's even possible). Also the original intent with TCU/FordPass data: Still no change here. No EV Trip data still on my '13. So the next step there is the GWM which will be a process since newer part #'s are hard to come by.
That said, everything else is fully functional. No DTCs or complaints from anything else in the vehicle. A couple of differences I have seen to the old IPC which I think is good to list here for documentation purposes:
No more fuel + electric or 'MPGe' economy display. This exists under the Settings > Units menu on older units. No longer there on this one full EV driving maxes out at 999mpg.
'Ready to Drive' popup displays the charge percentage on the newer units. Old ones do not.
Turn signal sound is SLIGHTLY different
Some text such as the odometer and some menu entries are a slightly larger and more legible font to my eyes on the new unit.
Probably a more obvious and well known one: The Gas+Elec range display on the bottom of the right side display on the new units. Doesn't exist on the old ones. There's a dedicated range screen on the left side on those.
Because of the above change, the clock is no longer displayed here. This is fine since the APIM displays this anyways.
Under the navigation panel, the compass image has changed. Hard to explain the differences but nothing major. Just a slightly different looking compass image.
For nav equipped vehicles, the speed limit image has changed slightly. The actual speed number in the image is slightly bigger on the newer units and to my eyes a bit easier to read at a glance compared to the older units.
Surprisingly, compared to my original assumptions, all the menus and displays on the right side screen are the same as on the older units while driving. The biggest difference here would be the Next Full Charge display that shows at key-off. I have previously enabled a 'Next Charge' display that replaces this and will have a Value Charge/Charge Now toggle as well as estimating when the charge will start and how long it will take. This behaves the same on both units.
Will be keeping this installed in the meantime. I'm also going to start looking for a 17/18 workshop manual to review as they cover CAN communication details including the source and destination of various pieces of data which will be helpful.
For now, this thread will probably go back idle unless something else comes up. But I'm always open for questions.