Robots are going to do many things for us in the future to make our lives easier. They can already clean litter boxes. Take the Litter-Robot Open-Air for instance. It is an automatic self-cleaning litter box that works for multiple cats. It reduces odor and saves litter.
The LRIII Open-Air has a large opening and an ergonomic litter chamber. Battery backup is optional. There is even a night light. Like what you see? You can get yours here.