TerraN_EmpirE
Tyrant King
Fin if you are a nation of the defencive. The PRC wants to project power though.Smaller planes used for area defense only doesn't need stealth. They can design a smallish plane, single engine with all the bells and whistles of a 5th gen but minus the stealth aspect or less stealth to save cost.
If it was just defence then they are covered. SU30, SU35, J10, J11 these would be fine when partnered with powerful radars. The PLA wants to be able to operate beyond the mainland and export. the kind of light weight machines you are describing are more suited to a far lower end user. A sort of fifth gen F5.Remember the US air force and navy are designed for attacking/fighting away from home turf. Whereas the Chinese air force at the moment and near future is meant to defend Chinese space. With J20 there is already an aggressive wing to the air force they don't have before.
J10 is 9 years old hardly ready for the scrap yard. A J10 replacement should be closer to the 2030s. The PLA seems to want an F35 of their own perhaps not VTOL but a stealthy day to day fighter that can do the Jobs J20 is to high and mighty to do... Wel J20 is off playing Top Gun they want a Intruder to drop the bombs.So if there will be a light fighter it can incorporate stealth, but I don't think it is going to be primarily designed for it. Primary goal is probably to be able to fill air force numbers to eventually replace J10 and older with all the best stuff. And if they can get some stealth into it and not break the bank, great.
All advanced programs are pricey F35 is just not yet fully implemented it's program costs + actual construction / units ordered= Unit costs.Whereas F35 wanted the best of everything wrapped in a stealth package and thousands of planes, that breaks banks.
The PRC and Russia don't advertize the unit costs where they stand only where they want them for export we have no actual prices on PRC J20, FC31 or J10