I personally think that humans will eventually find a way to cheat death. It may be biological, or it may be technological (making us into cyborgs). But it will eventually happen. When it does, the Elite will want to use the technology to cement their power forever. Or at least until they get tired of it (which may take hundreds of years).
Humans have found a way to cheat death and live forever. It involves faith in Jesus Christ. I would not want to extend my life here by a hundred years I am weary of tragedy war illness and sorrow. I would far rather depart and be with my Lord.
This is not necessarily a good thing. Can you imagine a hitler or Iranian mullah that had decades longer to commit their evil? ISIS jihadis that live for a century growing more experienced and more evil? There is a reason God has limited our lifespans here.