I think the same way since Diablo II gets different kinds of people: trader, duel, chat, PvE. D3 only has PvE. You're always alone and this makes the game boring. All the interaction with a human makes the game better. Otherwise, It'll be a diablo 3 with new mechanics and a new story. The console has too many players to let their wallets go away. The new age of game where you can make more profit is more viable for gaming industries. I cannot believe they can make something as good as D2 in the same genre. But, I believe they'll make something better than D3. It's not very hard...
Only the future will show who's right.
Of course, this is my point of view.