If the densities were a video game

[anagogy]

What would fifth density objective be if it were a video game? And what would the world look like?

Third density objective would be to balance the yin and the yang. It would look like our world.

I think the fifth density objective would be to conceptually understand or grasp the structure of the grand illusion. And I would imagine it could look however one would want it to look, as the nature of illusion is more under your conscious control at that point. Think how different various 3rd density physical worlds can look from one another, and then apply that concept to higher density worlds. I'm sure there is a vast array of possible appearances.

I would also disagree with your third density objective slightly, as from my perspective the third density objective is to imbalance the yin and the yang and to bias in one direction or the other.