Comment by Swoerd
I would love to see a version with wireless charging, though that might be tough with the all metal enclosure, perhaps it could be done through the front/screen section.
Also, adopting the screen off function Apple watches use could be a cool addition, for that it would need a light sensor. On an Apple Watch, you can switch the screen off by simply covering the screen with your hand.
I think a plastic housing might look really nice TBH.