evolution is not completely random.
genetic mutations are random.
natural selection is not.
a strong lion's genes will thrive more than those of a weak one, because nature is hard and if you are stronger you will be around longer to breed and to care for your offspring---================NOT random.
If 2 humans have sex, there is a genetic mutation, however small. Novel genes enter the genepool thus.
Natural selection, the nonrandom bit, is now much weaker, cos:
we have HEALTHCARE. Survival of the fittest? No. Survival of who happened to be born into a civilised nation with hopefully free healthcare, drugs, etc.
Our culture (once just for designing spears etc) has spiralled out of control, has taken on a mind of its own, and occupies a much larger role in sexual selection and our general thinking. Sexual selection as you are born with, is not fit for purpose. In general, the human mind is not perfect for purpose. It was REALLY good for 20K years ago, each new human is still born thinking they are coming out of the womb into that type of environment, they are obviously not.
We will not go through a new period of evolution, because basically we can survive in the environment we are in, and if a radically new environment emerged, the adaptation would be by technological means, not natural selection.
Humans really are UNIQUE.