Here is a Diplomat Article pointing same direction that China may license produce Su-57E. Russian delegates at LIMA2019 is advocating Su-57E to Middle Eastern countries, China and Turkey.
I am guessing Turkey will take the bait to buy Su-57 considering Turkish F-35 dream is over. Congress asked Lockheed Martin to source F-35 parts from America and remove Aselsan from supply chain.
My second guess China may help cash poor buddy Russia to bail out Su-57 program if Russia opens the door to Engine technologies and 3D TVC.
I am guessing Turkey will take the bait to buy Su-57 considering Turkish F-35 dream is over. Congress asked Lockheed Martin to source F-35 parts from America and remove Aselsan from supply chain.
My second guess China may help cash poor buddy Russia to bail out Su-57 program if Russia opens the door to Engine technologies and 3D TVC.