Is existentialism dead?

Have we reached a new social phenomena in which self indulgence and instant satisfaction are embraced, and are those things actually immoral? Are we heading toward a new era when even the phenomena of death will become outdated and allocated for only the poor, and those who can afford it will live after their physical body can no longer function as a living body? Will designer babies become a status symbol, and will there be, or should there be restrictions on genetic tinkering that could potentially cause more genetic disorders and stifle genetic diversity?

Nietzsche spoke of a time in the future when humankind will no longer have objective truths exactly like the logic of postmodernism. Nietzsche called this time the time of "the final man" and he "prophesied" that decadence would overcome humankind and we would destroy ourselves, but I ask, is the new ideal of indulgence actually morally bad or disastrous for the continuance of humankind?