South Korea Unveiled a Prototype of KAI KF-21 “Boramae”
theaviationist.com
theaviationist.com
However there is a long way to go, especially in terms of big unknown capabilities of network/sensor fusion and integration of US systems.
Kinematics and stealth are often the areas of focus when network/sensor fusion may be where the greatest value may lie.
Sweden have had a lot of success with the JAS-39 Gripen integrating US systems as well as enjoying a good level of export success.
The Israeli Lavi cancelled in the 80’s ran into a number of problems that may have included confliction/cannibalisation risk with the then string F16 export market.
Perhaps the KF-21 could represent a low(er) option for the high(er) F35.
Something akin to the low(F16)/high(F15) mix of the 1970’s.
[0] https://twitter.com/TheBlueHouseKR/status/138046938628105830...