Rather than the nickname (don't worry, since we are now a frenemy within NATO, they also will find a code name), I wonder how the numerical coding will be. Because after the Hürjet and MMU codes are revealed, other future systems following these platforms will be coded according to this systematic.
I wonder if it will be two letters and two numbers, or one letter and three numbers, or some other combination. The first letter could be the nation code, the second could be the class code. In the numeric part, aircraft separation can be provided according to different parameters.
Designating military aerospace vehicles and ordnance is an important issue for standardization. I think this year or next year the Turkish Air Force's approach to this issue will be revealed. Probably the US Mission-Design-Series (MDS) designation system will be taken as an example.