I doubt your gonna see a performance jump like this again anytime soon; only thing that might happen in 2017 is other vendors start integrating this sensor into there own products.. but you cant really go wrong w/Dahua and its established quality.
The Surveillance Industry moves rather slowly; its not like SmartPhones and in 2 years yours will self destruct if you dont replace it with something always thinner, sometimes larger or sometimes smaller, and worse battery.. my system is showing its age up against these cameras but this kinda jump is uncommon, we'll be lucky to see gains like this again in another 2-3 years.
dahua has not even cranked out any quantities of the products it promised last summer.. were just now getting these out into people's hands, but only via importing em.