I highly doubt it will happen any time soon, if they ever decide to go that route again. Ever since the Dreamcast failed, they've had a hell of a hard time making a game that doesn't suck. There's the rare exception nowadays like VF5, but overall I think their reputation has fallen so far that they don't stand a chance of convincing anyone to buy a system with their logo on it. Would you really buy a game console from a company that can't make a decent game even when all of their resources are devoted solely to that purpose?