Originally posted by Omega Vision
Kirby's original plan was for the New Gods to be the successors of Odin, Thor, Zeus, et all. In fact the first panel of the first New Gods comic which talks about the end of the Old Gods is IIRC directly lifted from a Thor comic's depiction of Ragnarok which Kirby had also drawn. With that in mind it wouldn't be impossible to fit them in, but they'd lose a lot of the deeper significance that subsequent writers such as Morrison gave them. I see Darkseid being an Asgardian villain--a God from an alternate timeline who attempts to destroy the pantheons so as to allow the birth of the Fourth World in 616 Marvel.
Seeing that you still post on this sight I don't feel too awkward about replying to this older post. I think that Marvel and DC should make this happen in an extended crossover event.