I suppose this is a interim solution untill either a Y-20 or a C-919 based platform is available.
Does anyone know how many Il-76's China has in her inventory at the moment ?
I doubt we'll see an MPA based off Y-20, C919 is more likely.
But I think it's worth keeping in mind that GX6 will be quite a large and capable MPA in its own right, and despite the shift in the USN and JMSDF towards jets for MPAs, there is still a role for turboprop driven MPAs, and their competitiveness really depends on the mission systems and the crew aboard the aircraft.
That is to say, GX6 will probably be no more an "interim" solution to the PLAN than the KJ-200 was, and I foresee it to be built in large numbers. Two, three dozen at least.
I'm not sure exactly how many they've got currently, but in 2010 they ordered 10 refurbished Il-76s in addition to their 14 or so Il-76s at the time. At this point I think deliveries are over halfway complete