Given that humans are slow, expensive and heavy and increasingly a liability in most combat scenarios and the future of manned fighters does not look good since at this point any "new metal" called forth by active hostilities would be most likely automated and (relatively) disposable.

Unfortunately we seem to have lost our moral qualms about bombing civilians some time ago so any coming wars will look like skynet with flying murderbots killing based on policy decisions made far away by people who will never see their cousins body lying where the missiles blew it.

And if you think that's a bleak and hopeless view; just think how the Pakistanis, Afghans and Yemenis who've been living with that reality for a dozen years now; feel.