This is a great question.
I believe if Jobs is health is good enough, it will be the hardest task of his life to not take over and dominate the entire event.
A hopeless narcissistic personality can never step back. Jobs is the World's Leading Narcissist.
Thankfully Tim Cook is not, and is widely respected in the industry for his ability to listen as well as speak. For his great people skills and ability to lead without putting people down.
As customers, Tim Cook would never tell us, "You're Holding It Wrong" in the condescending and disgusting manner that the self absorbed Steve Jobs did.
Going forward, Apple has an even brighter future with Cook at the helm. I am so happy with the new CEO.