Predicting what human beings or their descendants might look like one million years into the future is highly speculative and beyond the scope of current scientific knowledge. Evolution is a complex and unpredictable process influenced by various factors, including environmental changes, genetic mutations, natural selection, and social and cultural influences.
Over vast periods of time, populations can undergo significant changes due to adaptation to new environments or selective pressures. However, predicting the specific outcome of such changes is challenging, if not impossible.
It's important to note that the human species, Homo sapiens, has been around for roughly 200,000 years. While we have seen some notable changes over this period, such as changes in stature and brain size, predicting the exact path of human evolution over such an immense timeframe as one million years would be purely speculative.
Moreover, the future of humanity is not solely dependent on biological evolution but also on various other factors such as technological advancements, societal changes, and potential colonization of other planets, which could introduce entirely new dynamics.
In the realm of science fiction, writers often explore these possibilities creatively, but from a scientific standpoint, the future of humanity a million years from now is far beyond our current understanding.