If you can create a Dlc story, would it be?

Hello...........

if you play dead space severed, you see that this game dlc is awesome.......

but is you can create a dlc story.

My ideas

Dead Space: CEC caos and escape (story based in Ellie before encounter Isaac)

Dead Space: Dementia (pararrel story of Isaac with Stross as the protagonist)

Dead Space: Sprawl Apocalipse (explain the begin of the outbreak in the sprawl with security goverment personal)

And your ideas?............