I guess anka4 will not be an unmanned fighter like kızılelma,it must be a bigger version of anka3 with two engine ,thats a big step but with little effort
There is a long article on defence turkey.Aselflir 500 is for general puRpose use,600 has larger gimbal for high altitude use-over 40.000 feet and merops like 500 but for performs better for unusual situations like fog,dust etc…
A fighter using two way data link missiles make him more time on locking prosess and vulnurable too,but it can be done by another aircraft or uavs.Yes aesa seekers is good for range and more resistant to ECM.
Expandable decoys are the most important defence against the RF guided missiles,because this missiles including gökdoğan can lock on jammer source,so jamming pods are useless.The only usefull jamming can be made from distances that these missiles can not reach like tusaş hava soj project...