A hypothesis going forward:
From issue two, we know Battleworld's ground is a huge body (or bodies), Valeria and Sue are in Doom's inner circle, Franklin and his pet Galactus guard Doomstadt, and Doom appears to have retained the god-level powers he obtained as Rabum Alal.
We know this is 616 Doom. It seems to be 616 Valeria and Strange. We saw 616 Valeria apparently die in the nothingness of nothingness, along with Sue, Johnny, Ben, and Franklin. If we hop down the reason hole a bit, and assume that 616 Valeria means that's also 616 Sue and Franklin, then Johnny and Ben are unaccounted for.
Except that Galactus is on fire.
And Battleworld is made up of a huge body that appears to be orange rock.