More F-16s; God knows when we will come out of this obsession of American-made sanction-prone military hardware. The entire 60s era was not sufficient to learn a lesson? Entire 70s era was not sufficient to learn the similar lesson for the second time; Entire 90s era was not sufficient to learn the similar lesson yet again? I can not speak for others, but I myself have developed kind of an allergy for this 70s era F-16. If I were to protect my home, I'll go for a far inferior shot gun for which I have ample cartridges, and related supplies than with a most sophisticated Machine gun whose ammo and supplies are in the hands of an ever-mood-changing supplier who is also the friend of my arch enemies.
The leading air forces are concentrating all their efforts and resources to develop/acquire the 5th generation air-superiority fighter air planes and we are chanting the acquisition (hopes of) old F-16s. May Allah have mercy on our state though I very much doubt.