What problems would have to be solved to be able to have this robot in reality? How soon do you…

What problems would have to be solved to be able to have this robot in reality?
How soon do you think that these problems are likely to be solved?
Base your answers on fact if you can, and try to back them up with citations from reliable sources. We’re looking for more than a couple of sentences for each of these, but don’t write something the size of War and Peace. Try to be to the point and write concisely, but make sure you give us the information that we ask for.