I think the point of it was to illustrate his God Tier, Heir of Breath, further since its counterpart, Blood, refers to bonds; essentially, he became surrounded by the freedom to do whatever he wanted without being tied down by anyone. Unfortunately, he doesn't really have any direction to go whilst everyone else is doing their various other walks of life such as running companies, building robots, or starting civilizations. Plus, John was essentially ripped out of canon due to the House Juju which is kind of what allowed him to Retcon the Game Over timeline.
There is speculation that the foretold epilogue may entail something for him to do. As a bonus, it will apparently involve Viz Media so that's something to look forward to and to speculate on.