More and more public appearances by the Phenom suggest that he's loosening his hold on his gimmick. From Texas Longhorns football games to Michelle McCool's Instagram, the gray-beared, t-shirt-wearing version of The 'Taker has been popping up everywhere - and that suggests that we may have seen the end of The Undertaker in a wrestling ring. Still, he can't fade away when there's one last dish of revenge unserved. In other words, "The Last Outlaw" has unfinished business. Maybe Brock Lesnar will return at Hell in a Cell... and maybe Undertaker will follow and descend upon him like a dark cloud. After all, Undertaker has a special tie to the event and the match - no one man made Hell in a Cell legendary the way the Phenom did. Undertaker and Lesnar face to face would get fans talking, and the match could easily headline a show prior to WrestleMania. If 'Taker loses again, then Paul Heyman has even more to brag about... and WWE's greatest Superstar can go home with a clear conscience.