Leica Camera AG has registered a new product in China under the model name 4104 – it supports Bluetooth, but not Wi-Fi, which means it could be a new camera accessory:
This could be the new grip for the Leica D-Lux 8 camera that is also listed under the 4104 model number:
That grip does not have Bluetooth. Maybe Leica will release a new rechargeable grip for the D-Lux 8 camera or they have a new Lux camera coming soon.