Funny thing is the jet isn't even fully developed in real life yet. Block I was like alpha version, Block II is beta, Block III is like v1.0 where it catches up and even crosses F16 in many respects. Block III will come with a B variant that seats two. It will also get a better engine, lighter and possibly more aerodynamic airframe, HMD, better radar, even more screen space, PL-15 etc etc.