Here's my take on the future: We'll upload ourselves and use much less energy. As uploaded agents we'll have all the advantages of software - forking multiple instances of ourselves, backup for assured immortality, plugins and upgrades, changing our appearance at will, slowing down or speeding up, becoming part of a collective - everything. It will be Life 2.0, very different from our life.
We've already "uploaded" parts of the brain - visual processing, voice, simple communication and some interaction skills like playing game, moving about and handling objects.
Our age is the first where massive storage, worldwide communication and cheap cameras exist. So we will be an interesting case for the future uploaded agents - we'll be revived based on our digital traces in order to study the origins of Life 2.0 - digital archeology.