I not sure we get Neil Gaiman writing for the US Comic industry.
He got his break here because DC had good luck with Alan Moore.
I can see Alan Grant coming to write for DC since he did do some good work for 2000AD especially the Apocalypse War.
But Neil Gaiman first got involved with Comics because of his friendship with Alan Moore.
So I be surprised if we see Gaiman get involve with Comic without Moore.
I suspect that Gaiman would instead continue his early prose fiction writing. So we see his success as a Fantasy writer happen earlier. Maybe Sandman as a Novel series?
From my British POV at the time, Gaiman seemed to leap straight from a couple of
Tharg's Future Shocks in
2000AD straight to his own DC series, so I always thought it was (justifiable!) encouragement and promotion from his good friend Moore that got him the gig.
In a 'No Alan Moore'TL, I wonder if Gaiman may have developed his career as a music journalist more.
The reason I suspect this is that in the early '80s Gaiman was BFF with one of Kerrang's early standout writers, Dave Dickson, whilst Gaiman wrote music features for 'top shelf' soft-porn magazines like
Razzle, Penthouse, and
Men Only*, in which they were forever namechecking and referencing each other.
Personally, I thought they were both insufferable HST-wannabes frustrated that there was no UK
Rolling Stone equivalent, but I could see Gaiman becoming a kind of Tony Parsons, complete with his own Murdoch column, by now in TTL.
*
(Yes, I "read" a lot of those. Don't judge me, we didn't have the internet when I was a teenager!)