The patent system won't change.
It is very easy to get a patent for an existing idea by just changing the usage scenario.
Even though face recognition on a computer is well known, and you and I know that a mobile phone is just a computer in a different box, face recognition on mobile phone is sufficiently novel to get a patent.
Of course many people will say that this is a problem with software patents, but the same issue applies to all patents. Whenever a new widget or technology comes along there are a rash of new patents.
Gluing table legs to table tops is well known, but invent these new things called chairs and suddenly you can patent gluing chair legs to chair seats.
It's not just software patents, it is the whole patent system that's broken.
USPTO makes pots of cash for Uncle Sam and patent lawyers make pots of cash through applications. But the real money for patent lawyers comes when a patent is challenged.... that's the big win. Thus crap patents are worth more to them than good ones.
For any change to happen, the patent system experts, ie the existing practitioners, would be consulted and they would have to want the change. Since the status quo is serving them very well, they won't steer the USPTO towards change.