How far are we from creating a Blade Runner-style Replicant?

When it was released in 1982, Blade Runner painted a picture of a dystopian near-future in which humans lived alongside machines. Sergio Canavero, the surgeon behind the paper, has been dubbed Dr. Frankenstein after claiming he will be able to complete a human head transplant by the end of this year. “The concern many of us in the field have about this sort of work is that those involved appear to be charging ahead without a viable, demonstrated solution for the significant and unresolved technical challenges,” says Dr. Wael Asaad, assistant professor of neurosurgery at Brown Alpert Medical School. Since sensory input is necessary for maintaining cortical tone, this drastic loss would lead to a total deterioration of function,” says neuropsychologist Joyce Schenkein, from Touro College, New York City. The trapped person would be able to control a robotic creature that can do things for him.” So the science so far is more like The Matrix, than Blade Runner.