How can a forty year old man have potential?
I think he meant the potential for the character to add some variety to the main event scene with new feuds, title changes, etc. And do you even watch WWE? Potential and age are on complete opposite ends of the spectrum in the WWE style. HBK, Taker, Batista, Flair, there are plenty of 40 somethings in the WWE main event scene and mid card. Age and potential don't matter in this company, and Kane has been able to keep his character over despite the WWE's best efforts to book him straight to hell. That's a complete testament to Glen Jacobs as a performer. He's quite possibly the most deserving of a real title the company has had since Ted DiBiase.