The initial question was just meant to open the issue of future negatives, and having gotten some feedback on how the issue had been discussed before, I gave the bulk of my thoughts in a reply to my initial post.

What I consider much more realistic possibilities (more realistic than benign, enlightened resurrection) are being revived with little regard to brain damage and to serve the needs of an elite. I laid it out in my other response in this thread (I don't know how to link to a particular comment in a thread, but search for 'When I started this thread'.)