What would you have wanted from a Dead Space 4 with Ellie? How would you have expanded the story?

We found out from Ben Wanat (Lead Production Designer of Dead Space 1 and 3) that Dead Space 4 was going to have the player play as Ellie Langford as she goes through a semi-open world of graveyard, derelict ships in (dead) space as she tries to build a shock point drive. How would you have expanded upon on this storyline? What cool ideas do you have for potential gameplay mechanics, story beats, themes, characters, etc.