I very highly doubt it: They cannot very well have people's hearing aids fail to work if some sort of doom destroys the phone.

It is probably simply that it isn't so absolutely difficult for Apple to start making these. The company is already experienced in making small electronics, earbuds, and things like this.

I love hating on Apple as much as the next guy, but I doubt that would happen. They'd probably have some fancy features that could only be controlled from Apple devices, but surely none of the core functionality.