The new stylus has no entry points, so it’s pretty much unrepairable for the average person.
As iFixit got into the Pencil — using an ultrasonic blade, no less — it discovered a ribbon cable that wraps all the way around the inside of the Pencil. iFixit speculates that this cable can be used to register where the user taps on the side of the Pencil, not just when.
This seems to suggest that Apple had bigger dreams for the new pencil, but the dream either didn’t pay off, or Apple is holding something back for a future update of some sort.
Either way, it would be incredibly useful to add a few more actions to the Pencil, especially since pros seem to be looking for ways to add more efficiency tweaks to the restrictive iOS.