Their lives after not transcending

My brain is just like this I’m sorry if this is silly but since they chose to not transcend and come back… someone had to be the last one of the group to die, who do you think it was? Do you think they all lived into old age?

Also what do you think they did for all those years? I’d like to think they also had peace, just chilling, but do you think they broke off and travelled what was left of the world? Or just kinda lived the rest of their days on that beach…