Short of a true hoverboard, the answer may come in emulating wingfoils on the ocean. A third wheel drops down at speed and pushes the scooter deck into the air. Like lowering a plane undercarriage. So an e-unicycle below the e-scooter. That creates a buffer if a pothole or kerb is hit - the wheel swings back into its holding compartment and the e-scooter wheels make contact again.

Hey, and why not even hold a wing up when the battery is low!? That can also charge it up!

I really don't know.