Given things like hip replacements and anti-inflammatory drugs it might be that we're better at keeping people mobile in advanced old age then we are at keeping them alive.
There's a lot of chicken counting going on when the future is discussed. We have very effective pain medicines right now that many people can't have because of their potential for abuse.
I wouldn't count on anything until you see actual meds on the market that some group of "We Know What's Best For You" people hasn't declared evil.
http://www.sciencedaily.com/releases/2015/08/150831001112.ht...