Here's why bringing back the creator is a shit idea
First of all the creator returning basically destroys everything we worked on since the crystal of creation can no longer be the Collector's therefore the collector is no longer the character he is destroying all development the collector has gained, secondly the creator returning means that all development to the story we made was for nothing because the creator was supposted to be dead and the villains we all worked to make would be instantly killed off because of an half-assed happy ending, and finally because we all agreed that the creator died long ago so bringing him back would wreck the entire timeline that we worked hard on.