Ambitious to say the least.
There were pictures on another source that shows both single and twin engine models. There are also plans to build a rocket that can take satellites to orbit.
All this goes with the rest of ideas that Turkey wanting to become an arms producer/supplier, with the Milgem ships, Altay tanks, Anka UAVs and such.
I doubt that eventually this will replace the F-16s one day or even Turkey will opt out of F-35. The design phase says this fighter will be built for Turkey's needs, all the way to 2050s.