I'd suspect they'd go up to like 48V. It's the max voltage for USB-PD 3.1, which corresponds with being the effective highest voltage you can have before you're

I'd suspect they'd go up to like 48V. It's the max voltage for USB-PD 3.1, which corresponds with being the effective highest voltage you can have before you're no longer "low voltage". This is also why PoE is approximately the same voltage.