I wouldn't even go so far as to say that the human species will still exist in 200 years from now. You know, nuclear weapons don't get weaker over time and who knows what another war would do to us.
It seems to me that the threat may well not be from a nuclear weapon or a collision with a meteorite as it is presented in science fiction films ... It seems to me that scientific and technological progress really represents a far greater danger to humanity. While the computer code is used to create useful programs and services is good, but I personally am frightened by the work on artificial intelligence.