Cronos the new dawn is essentially what would have happened had frodo kept the ring into the modern day
Think about it: the warden is likely saruman or gandalf, The traveler could either be aragorn or samwise who is fighting through the remnants of the rings transformative aftermath and picking up essences of people that either lived through it or have gone insane because of it. The meat Moss is essentially the rings corruption made manifest, signifying the horrific transformation from simple City to hellscape.
That's my speculation anyway. You can even make the case that Gabriel is gollum in a way.
The only difference is that there's no happy ending to the story.
Too long didn't read: the new dawn is a what if scenario where frodo kept the ring instead of destroying it