It was recently discovered that in certain groups of humans, that the brain had evolved a couple of extra genes as of 5 thousand + years ago. They're not sure what purpose they have yet - ideas range from making us more intelligent to making us more dumb. Who knows what would be better for survival?
Nevertheless, this quenches the idea that humans stopped evolving millions of years ago, as previously thought.
As for the future: Well, it entirely depends on how our environment changes.
For example, if it becomes excrutiatingly hot out of doors, due to global warming, getting closer to the sun, or the ozone layer wearing away into nothing, and if we cannot at that time move to another planet, we will inevitably have to live in doors or underground, with zero exposure to sunlight.
This will increase the size of our eyes and our pupils, to make them able to see easier in the dark. Our skin will lose much pigmentation, become more translucent or simpler paler than the palest caucasian. We may become smaller in size, to accomodate being underground with close ceilings.
(In case anyone missed the reference, I just described how we could become those 'little grey men' traditional aliens, that some people believe are us, many millions of years in the future, travelling back in the time.)
Or, something else entirely may happen.
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