life extension is expected to happen as a result of breakthroughs in tissue rejuvenation, stem cells, regenerative medicine, molecular repair, gene therapy, pharmaceuticals, and organ replacement. Which among the seven fields is more likely to achieve that goal in the foreseeable future?
I think the structure of this question could be less opinion based as De Novo stated above. But a recent article published by mayo clinic will help shed light on the question. Falls under the category of regenerative medicine I believe.
EDIT: Since links are apparently a taboo, here is the paper. Educational on current research and methods on an 'aging cure'.
Xu, Ming, et al. "Senolytics improve physical function and increase lifespan in old age." Nature medicine (2018): 1.