People would get wiser, but at what age do you stop the aging process? What would be the optimum age of maturity?
If man lived forever we would die from starvation, food and water would be valued higher than silver and gold.
I'm sure each country would try to expand and fight for more land to farm.
Reproduction could be outlawed or closely monitored (lottery, license ext)
If the earth is round, we would have to leave earth and terraform another planet or find another one to populate.
If the earth is flat we would be stuck here and find a way to survive and feed an endless population.
Lots of different outcomes.
Also being that our bodies wore out but never aged, our bodies would slowly be replaced by synthetic joints, hips ext. just because we no longer aged doesn't mean we couldn't wear out body parts. That scenario could lead to trying to "upgrade" the human body and eventually we become a Society of borgs lol.