On the new Earth, as the awakened consciousness comes in, I would say the ego would develop in children and quickly become outgrown when they reach adulthood.
Eckhart TolleOnce the pain-body has taken you over, you want more pain. You become a victim or a perpetrator. You want to inflict pain, or you want to suffer pain, or both. There isn't really much difference between the two. You are not conscious of this, of course, and will vehemently claim that you do not want pain. But look closely and you will find that your thinking and behavior are designed to keep the pain going, for yourself and others. If you were truly conscious of it, the pattern would dissolve, for to want more pain is insanity, and nobody is consciously insane.
Eckhart TolleMany people in this world are still so identified with every thought that arises in their head. There is not the slightest space of awareness there.
Eckhart Tolle