Apple is already doing that for the USB port or lack of it. So certainly possible, but it does mean that a to enter one of the largest markets in the world, you have to offer it, which should make it much more common in the rest of the world. So for Android users, this should give everybody in the world access to decent removable battery phones.

Lets just hope cost of production for 2 separate models is going to cost them more than just a single model.