Diablo 4 is diablo 3 with slight changes. Which is just diablo 2 with changes. I like a good hack and slay, but I hope it doesn't get nominated. The differences to diablo 3 appear /seriously/ minimal. In an ideal world, I feel like this should be disqualifying.
I personally have little interest in Diablo 4, but considering it’s pedigree and how well it will likely sell, a GotY nod seems probable unless the game is completely broken at launch.