I'd pick up WoW again if it came to a console, if for no other reason than to see what it's like on a 50 inch hi def.

The keyboard and mouse already exist. So yah, that's a non-issue. Go Google - xbox 360 keyboard - and you'll see it in action. They'd probably bundle those peripherals in a WoW package though.

Xbox Live already has the voice chat capabilities in place. The only hurdle I see if what someone already mentioned - getting mods to work properly on a console version.