I'm less optimistic about the future, in a way I do believe that if human society keeps on the same path as it is now, in a few centuries time we probably will go beyond being confined as a specie to being mere biological entities, we'll probably discover a way to transfer consciusness onto devices, networks, thus in a way making us immortal and not binded to the physical restrictions having a living body entails.
However it is also truth that this would only if global technological improvements keep up at the same pace as they have done so far in the past few decades, if the world's economy/global society were to collapse, we would probably end up living in a overly polluted, post-apocalyptic scenario, huge slums, anarchy.