And here's why I think Steve will be around for a long time to come. According to Information Week, a source familiar with Apple's government sales plan said Jobs and certain Apple executives were granted security clearance by the federal government.
Why provide Steve Jobs clearance if he isn't coming back to Apple? You don't just grant security clearance like it's some kind of knighthood.
And let's assuming for a sec that Apple is treating the NSA and the military like they treat the rest of us, basically, telling them Steve's health is a personal matter. I have to assume that for the folks fighting and trying to keep America safe, they would have some intel on the status of Steve's welfare before giving him security clearance.
Finding out about Jobs' medical situation isn't like trying to find Bin Laden or WMD. The CIA or whoever else can easily get Jobs' health record. I seriously doubt the intel community would grant Steve Jobs security clearance if they did not believe he'll be back at Apple in some capacity.
Note: Steve was recently voted back onto the Disney board. Unless there is evidence to the contrary, we can only conclude that we'll be hearing more "one more thing..." from Steve for a long time to come.
Source: Information Week