Is there a need for death in fourth density?

[Signifyz]

  
It seems to me that death is the necessary means of leaving space/time and entering time/space.  In this density and others, the former offers more catalyst and opportunity to take steps of growth, whereas the latter offers more opportunity for reflection and acceptance and forgiveness.
  

We are entering time/space every time we go to sleep and in some specific metaphysical practices, so I would say your statement is a bit incomplete. Phisical death is a gateway to disincarnated state which is necessary as a compliment to incarnated state which is unbalanced on its own and needs a dual couterpart.