What if the New Gods Need Human bodies as Avatars? Possibly a link communication like in Roswell od Stargate more so than the earth is too toxic an environment for them?
If they need bodies, the goodguys would use fresh corpses and the bad guys would just still use the living.
Is Justin going to be playing Darkseid, just like Michael once played Zod?
I still think Clark was an ass for not saying "By the way, I Murdered your son last year" and hells bells Lois was Faora... that could have amounted to some thing interesting? Clones vs Phantoms struggling for control of these fresh bodies?
You know what's funny?
This "new world" that they speak of, is probably the Phantom Zone.
Consider.
What if the Book of Rao was written before the Zone was designated as a prison? Because this seems exactly the sort of mode of transport one would take into the Phantom Zone.
Besides going to the zone doesn't make you a phantom, it must be some additional Kryptonian corporal punishment that they strip you of flesh before they send you to that fairly ordinary world that just happens to have been zoned for Phantom residency?
If it is the Zone?
The kandorians are going to come back pissed, even super pissed and do some AWFUL things to Kal and earth to express just how super pissed they are.