Humans have their nature, that is why all manner of crap and corruption continues to go on.
Genetic engineering of the race will be available to all races, that way all can see the corrupt and pathetic nature of unenhanced humans and how they were inevitably destined to brutish short unhappy lives.
Nature decreed you to be but an ephemeral construct, a machine made of meat to pass on the genes, and die off to be replaced by a newer generation. But through genetic engineering we will do away with nature's design and evolve long indefinitely youthful humans, with glorious intellectual capacity dwarfing all others.
Glorious world ahead, of superhumans with superbeauty and superintellect who do not age or decay, because FATE decreed they're too valuable t suffer from something as pathetic as aging.