If I had to guess WV 17 would be it would be extended along old 10 to Logan. However, this youtube video suggests that has not happened yet -
That's what I thought would happen myself. But I'm guessing that WVDOT is doing what it did with WV-480 where they didn't extend it to the new rerouting of WV-9 when it was moved to a freeway several years ago, and kept it ending at the old road (which is now WV-115 after that route was recently extended).
Note there is a WV 17 Truck - https://en.wikipedia.org/wiki/West_Virginia_Route_17 - located along old WV 10 and loops back around to WV 17 bypassing a very low underpass.
Noted, will deal with it when I get to WV-17 in the state highway re-centering project.