This is a weird one, but I’d love to see a reimplementation of the sensor bar. The gyro controls haven’t cut it for me. I like how the Wii U game pad had the sensor bar built in to the bezel. The real engineering nightmare would be squeezing IR cameras into the top of the Joycon
I would like to see a much better home firmware than horizon. Compared to the 3ds and the wiiu horizon is severely lacking.
All are severely lacking compared to previous implementations .
Ontop of this Nintendo online still sucks and I’d love to see it improved once and for all. I’d love to see servers for Nintendo games instead of them relying on peer to peer.