Well...A head transplant is planned sometime in the next few years, I kid you not, a real head removed from a diseased body will be attached to a healthy body whose head, obviously, suffered a fatal injury. Attaching nerve fibers to electronics is possible and with the experienced gained from near future head transplants, at least for the living, attaching heads to robots will be possible.
The big problem with this start ups idea is freezing the brain and so far companies that do this run into many problems. One of the complications is getting a certified medical person who can declare the individual dead in time, particularly if the person is being cared for at home. Another big problem is the freezing process requires chemicals to prevent damage to the cell brains. These chemicals take time to be absorbed and not all cells end up absorbing them.
And finally the biggest problem: If you where Einstein there would be a huge public interest in reviving him, but for the average Joe or Jane that would not be the case. Also consider that such frozen individuals brought back to life will lack the modern skills sets of the era they are awoken in, so whose responsibility is it to educate them? Not only that but a person declared as dead, with a death certificate, may not have the same rights as the living...Something to think about...