Doesn't matter what we use (btw, i'm on 2016 LTSB) still there is always the demand for the other SKUs as well.
If they don't release them you don't need to be a clairvoyant to see all forums flooded with refraining questions how to install or upgrade certain SKUs .
I think you should get the version info of wininit.exe, winload.exe and ntoskrnl.exe Look the description version info, does it have something like "prerelease"?
Maybe when we get esd file we get all editions. It's only uup, only for insiders, so don't expect to get all editions. This is what I think.
I think it is possiblely RTM with your words. But if you can provide version info screenshots, it will be more better.
Microsoft new update system is good for net consumption,used only one GB for updating my surface book from 17127 to 17133.
Install log and desktop screenshot: https://forums.mydigitallife.net/th...l-project-mrp-mk3.71555/page-124#post-1421575