Sacred 2 did a really good job of bringing ARPG to consoles.
As for Diablo 3, when they announced potions were gone and you would instead run over things on the ground, that clearly made me think that was a console friendly change. I think it would be exremely bad busniess not to make it for the consoles. Especially considering the next gen of consoles will be virtually as impressive as most middle to high end self made PCs. The tech cieling is here... and consoles, like laptops, are catching up every generation.
PS3 resurgance by GOW3 - Check! Mass Effect for PS3 - Check! Diablo 3 for consoles? I say "For sure"!