How should the WWE set up the Undertaker send-off?

The legendary Undertaker is coming to the final days of his career in wrestling. After the infamous streak being broken by Brock Lesner at Wrestlemania 30 it's very likely that the Undertaker will retire within next year. The epic match-up between the Undertaker and Sting has no purpose now. Unless the WWE sets up the match between the two legends at either Summerslam or Survivor Series of this year with the Undertaker going over Sting to redeem his big lose at Wrestlemania 30 with a victory over the Icon Sting. Or even hold the match off until Wrestlemania 31 in the Bay Area. With the Undertaker retiring the night after WM on RAW much like how Ric Flair's "retirement" send-off went. The whole Wrestlemania weekend should center around the Undertaker much like the same thing six years earlier with Ric Flair.



What do you think and how would you set up the Undertaker's retirement send-off?