They haven't announced a Brothers of Destruction vs Wyatt Family match for Survivor Series yet. So book it like this.....
Wyatt Family comes out on the next Raw talking again about how he has stolen the powers of the Brothers and blah blah blah. In the midst of this, have something happen that has 'Taker and Kane regain their powers. Maybe have 'Taker and Kane walk out looking all fragile and weak, have them enter the ring, and then 'Taker reveals the urn. 'Taker explains that if Wyatt has his powers, then the Urn will work on him as it did on the Undertaker. Somehow or another, 'Taker uses the Urn to absorb his and Kane's power from Wyatt and then, feeling rejuvenated, 'Taker and Kane clean house and take out the Wyatt Family. This allows 'Taker and Kane to enter the tournament at Survivor Series. Have 'Taker show a combination of his skill, wisdom, and will to win in the tournament by surviving grueling match after grueling match. In the Finals, have the Wyatt family come out to try and stop 'Taker from winning, but Kane helps 'Taker stop them and then 'Taker wins.
This would easily set up Wyatt as 'Taker's first challenger so that'd be cool. Have 'Taker hold the belt until 'Mania 32 and have 'Taker say win, lose, or draw 'Mania 32 is it. Have him inducted into the Hall of Fame. Finally, the match that we never really got to see happens at 'Mania 32. The Undertaker vs John Cena for the WWE World Heavyweight Championship. Have 'Taker lose for Cena's 16th title victory and arguably his biggest title win and have the fans and roster alike pay their respects to 'Taker as he walks to the back, never to be seen again........
That would be epic, awesome, outstanding, incredible, brilliant, enjoyable, great, sensational, cool, phenomenal, and any other superlative you can think of to describe it. I would definitely be crying after something like that.