The latest is the QBZ-95-1 and that was "new" for a few years now. Nothing new since then.
Now, I wonder why the export variant still use the old design, not incorporate the improvements on the 95-1?
my money's is on cost, backlog, surplus and conversion.
The PLA likely received a significant number of QBZ 95 units before the change in production was implemented, with the redesign the PLA is likely moving as quickly as possible to phase in the improved models well phasing out the old one. Because of the alterations to the QBZ95 I technical data package It may be that simply converting the QBZ95 to the QBZ95 I spec is not realistic So Norinco would have to retool the production line. The PLA meantime is likely looking to complete phase out of older service rifles and the first generation QBZ 95's as fast as possible.
This means that Norinco is likely racing to produce QBZ95I's as fast as possible and ship them off to the PLA.
the PLA however is likely stuck with surplus QBZ95's that they have to get rid of so they send them back to Norinco.
Norinco wanting to get rid of them, I suspect is using the Surplus QBZ95's as the basis for the export line. They are likely taking the units inspecting them then rebuilding them into the QBZ97 or a civilian model and shipping to export.
Unless they suddenly receive a major production order of QBZ95I or demand for QBZ97I Norinco won't make the changes until they exhaust the back stock of gen 1 QBZ95's.