The next stage for service sidearm development in the near term is the inclusion of Rugged, always zeroed, always on, all-weather red dot sights. This will markedly improve the ability for soldiers to hit enemies under combat stress. As a last resort weapon, the ability to make rapid and reliable hits as easily as possible is of life and death importance.
Such an implementation can be made with either a new slide or modification to the existing slide, so existing platforms need not be replaced.
With the PLA introducing widespread optical sight use on rifles with the introduction of the QBZ 191 and major kit overhaul, this could be a possibility. But I don't see this as a priority for the PLA and doubt we will see it any time soon.