Kane and Taker have a brutal match. It take's 4 tombstones from Kane, and he drags takers body to grave. Rolls him in and starts to dig in the dirt. Thunder sounds around the arena and Kane falls to his knees that he has ended his brother, as the druids surround the grave. He feels remorse as well as salvation at what has happened(it's his brother but has always wanted true revenge on him). Fire blasts out the grave to reveal an empty grave. Kane has ended the streak, yet he feels alone for the very 1st time and it's a sullin ending. Or go with realistic boring way and have a brutal match and there's a hug after the match. Personally the Undertaker has always been a gimmick, the last of the gimmicks and should for his last match be a gimmick exit...dramatic and far fetched. That's entertainment.