I'm adding mobile-l to this as I think it is a useful discussion.

The plan is to move the nearby code into the Geodata extension. To do this however we must remove the dependency on MobileFrontend code which is not an easy.

Check out the Mantle extension. This isn't final but it will give you an idea of a potential plan of action. This patch [1] will also give you an idea of how we could do this.

[1] https://gerrit.wikimedia.org/r/129480