Henadic Theologian
Legend
like it or hate it the two companies i doubt could put out each others products without major tonal shifts
I think your absolutely wrong about that, WotC already does Grimdark/Horror products, from the Book of Vile Darkness, to Darksun, Paul S Kemp novels, Amonkhet, Ravenloft, Innistrad, and GW does campy stuff like blood bowl. I think this is part of the point of the 40k Commander Decks and Secret Lairs, to prove they can do GW stuff right.