I don’t think AI will replace a combat pilot anytime soon. Probably not as long as I live (am 72, smile).
Probably not in the next 50 years. May be NEVER.
What is interesting to think about that it has been true for awhile that fighter jets could be designed and made that could exceed the tolerance of human pilots -g-force etc. So one could almost say that having human pilots actually limit design parameters in some scenarios.