Contacting SIG Bluetooth may mean that Huawei has started work on modules for smartphones. Motorola tried to implement such ideas earlier.
Accessories for smartphones in the form of special modules will operate using the Bluetooth interface. For comparison, Motorola in the Moto C series of smartphones used special magnetic contacts to connect a smartphone with an accessory.
From the documentation presented by Huawei, it becomes clear that we are talking about several options for gadgets: from those specialized in improving the quality of the audio signal, to accessories designed for mobile games.
There is nothing left but to wait for confirmation of the development of the described products in Huawei.