Well of course there will be a new perfect world but remember that as time passes the new world will be full of grief too just like the current world. I think this idea can be discussed after the new world comes up.
This idea gives me another. We can have a "challenge" map which refreshes periodically like every month or even every week. The player who made the best money balance can be awarded with something for the normal world. It will be a good event like thing and it will be exciting to challenge with other people. Also the challenge map can be different whenever the map refreshes. It would be fun.