JF-17 name might be used as reference indicating the common subsystem in new platform with JF-17 like engine, Radar & other avionics etc etc but the I would not be surprised IF PAC only undertook the study for the design of twine engine fuselage based on the cropped delta design design. Both JF-17 and F-16 are also crop delta
Agreed .... IF this report is True then yes it will not be another JF-17 but a new platform here JF-17 might be used only as initial reference same as during the early days of JF-17 project it was given the name of failed project Super-7 from 1995 just because of the reason no other name was decided for new Project initiated in 1998-1999
It was reported/rumoured in past as well that VT-4 will use indigenous barrel for main gun.
No many systems and developments which already in public knowledge are left unreported in this report.